Implement Plugin Loading.

This commit adds plugin laoding which are then added as sub winows onto the main window.
This commit also adds 2 plugins however more will follow

plugins/CMakeLists.txt

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+add_subdirectory(WebBrowserPlugin)
+add_subdirectory(TerminalPlugin)

plugins/TerminalPlugin/CMakeLists.txt

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+cmake_minimum_required(VERSION 3.16)
+project(TerminalPlugin VERSION 1.0 LANGUAGES C CXX)
+
+set(CMAKE_INCLUDE_CURRENT_DIR ON)
+
+include(GNUInstallDirs)
+
+find_package(QT NAMES Qt6 REQUIRED COMPONENTS Core)
+find_package(Qt${QT_VERSION_MAJOR} REQUIRED COMPONENTS Gui Widgets)
+
+qt_add_plugin(TerminalPlugin)
+target_sources(TerminalPlugin PRIVATE
+    TerminalPlugin.cpp TerminalPlugin.h
+)
+
+target_link_libraries(TerminalPlugin PRIVATE
+    Qt::Core
+    Qt::Gui
+    Qt::Widgets
+    qtermwidget6
+)

plugins/TerminalPlugin/TerminalPlugin.cpp

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+#include "TerminalPlugin.h"
+#include <QVBoxLayout>
+#include <QWidget>
+#include <QApplication>
+
+
+QString TerminalPlugin::pname()
+{
+    return "Terminal Plugin";
+}
+
+QString TerminalPlugin::pdesc()
+{
+    return "Simple Terminal Plugin.";
+}
+
+QWidget* TerminalPlugin::pcontent()
+{
+    QWidget *test = new QWidget();
+    QVBoxLayout *mainLayout = new QVBoxLayout;
+    console = new QTermWidget(test);
+
+    QFont font = QApplication::font();
+    font.setFamily("Monospace");
+    font.setPointSize(12);
+
+    console->setTerminalFont(font);
+    console->setScrollBarPosition(QTermWidget::ScrollBarRight);
+    console->setColorScheme("WhiteOnBlack");
+
+    test->setWindowTitle(tr("Terminal Plugin"));
+    test->resize(600, 400);
+    mainLayout->addWidget(console);
+    test->setLayout(mainLayout);
+    QIcon icon = QIcon(":/images/monkey.png");
+    test->setWindowIcon(icon);
+    return test;
+}

plugins/TerminalPlugin/TerminalPlugin.h

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+#ifndef TESTPLUGIN_H
+#define TESTPLUGIN_H
+
+
+#include <../../src/interface.h>
+#include <qtermwidget6/qtermwidget.h>
+
+#include <QObject>
+#include <QtPlugin>
+#include <QString>
+#include <QWidget>
+#include <QImage>
+
+class TerminalPlugin : public QObject, public Interface
+{
+    Q_OBJECT
+    Q_PLUGIN_METADATA(IID "org.SOM.Interface" FILE "TerminalPlugin.json")
+    Q_INTERFACES(Interface)
+
+public:
+    QString pname()  override;
+    QString pdesc()  override;
+    QWidget *pcontent()  override;
+
+private:
+    QTermWidget *console;
+
+};
+#endif

plugins/TerminalPlugin/TerminalPlugin.json

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+{}

plugins/WebBrowserPlugin/CMakeLists.txt

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+cmake_minimum_required(VERSION 3.16)
+project(WebBrowserPlugin VERSION 1.0 LANGUAGES C CXX)
+
+set(CMAKE_INCLUDE_CURRENT_DIR ON)
+
+include(GNUInstallDirs)
+
+find_package(QT NAMES Qt6 REQUIRED COMPONENTS Core)
+find_package(Qt${QT_VERSION_MAJOR} REQUIRED COMPONENTS Gui WebEngineWidgets Widgets)
+
+qt_add_plugin(WebBrowserPlugin)
+target_sources(WebBrowserPlugin PRIVATE
+    WebBrowserPlugin.cpp WebBrowserPlugin.h
+)
+
+target_link_libraries(WebBrowserPlugin PRIVATE
+    Qt::Core
+    Qt::Gui
+    Qt::WebEngineWidgets
+    Qt::Widgets
+)

plugins/WebBrowserPlugin/WebBrowserPlugin.cpp

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+#include "WebBrowserPlugin.h"
+#include <QVBoxLayout>
+#include <QWidget>
+
+QString WebBrowserPlugin::pname()
+{
+    return "Web Browser Plugin";
+}
+
+QString WebBrowserPlugin::pdesc()
+{
+    return "Simple Web Browser Plugin.";
+}
+
+QWidget* WebBrowserPlugin::pcontent()
+{
+    QWidget *test = new QWidget();
+    test->setWindowTitle(tr("Web Browser Plugin"));
+    test->resize(1024, 750);
+    QVBoxLayout *mainLayout = new QVBoxLayout;
+
+    view = new QWebEngineView(test);
+    view->setUrl(QUrl("https://rubenwardy.com/minetest_modding_book/en/index.html"));
+    view->resize(1024, 750);
+
+    horizontalGroupBox = new QGroupBox();
+    QHBoxLayout *layout = new QHBoxLayout;
+    back = new QPushButton(tr("Back"));
+            layout->addWidget(back);
+    connect(back, &QPushButton::clicked, this, &WebBrowserPlugin::backpage);
+
+    forward = new QPushButton(tr("Forward"));
+            layout->addWidget(forward);
+    connect(forward, &QPushButton::clicked, this, &WebBrowserPlugin::forwardpage);
+
+    refresh = new QPushButton(tr("Refresh"));
+            layout->addWidget(refresh);
+    connect(refresh, &QPushButton::clicked, this, &WebBrowserPlugin::refreshpage);
+
+    smallEditor = new QLineEdit;
+    layout->addWidget(smallEditor);
+    smallEditor->setText("https://rubenwardy.com/minetest_modding_book/en/index.html");
+
+    go = new QPushButton(tr("Go"));
+            layout->addWidget(go);
+    connect(go, &QPushButton::clicked, this, &WebBrowserPlugin::gotourl);
+
+    horizontalGroupBox->setLayout(layout);
+
+
+    mainLayout->addWidget(horizontalGroupBox);
+    mainLayout->addWidget(view,1);
+    test->setLayout(mainLayout);
+
+    QIcon icon = QIcon(":/images/monkey.png");
+    test->setWindowIcon(icon);
+    return test;
+}
+
+void WebBrowserPlugin::gotourl()
+{
+    view->setUrl(QUrl(smallEditor->text()));
+}
+
+void WebBrowserPlugin::refreshpage()
+{
+    view->reload();
+}
+
+void WebBrowserPlugin::backpage()
+{
+    view->back();
+}
+
+void WebBrowserPlugin::forwardpage()
+{
+    view->forward();
+}

plugins/WebBrowserPlugin/WebBrowserPlugin.h

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+#ifndef WEBBROWSERPLUGIN_H
+#define WEBBROWSERPLUGIN_H
+
+
+#include <../../src/interface.h>
+#include <QWebEngineView>
+#include <QtWidgets>
+
+class WebBrowserPlugin : public QObject, public Interface
+{
+    Q_OBJECT
+    Q_PLUGIN_METADATA(IID "org.SOM.Interface" FILE "WebBrowserPlugin.json")
+    Q_INTERFACES(Interface)
+
+public:
+    QString pname()  override;
+    QString pdesc()  override;
+    QWidget *pcontent()  override;
+
+private:
+    QGroupBox *horizontalGroupBox;
+    QPushButton *back;
+    QPushButton *forward;
+    QPushButton *refresh;
+    QLineEdit *smallEditor;
+    QPushButton *go;
+    QWebEngineView *view;
+
+private slots:
+    void gotourl();
+    void refreshpage();
+    void backpage();
+    void forwardpage();
+};
+#endif

plugins/WebBrowserPlugin/WebBrowserPlugin.json

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+{}