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/WebBrowserPlugin/WebBrowserPlugin.h

@@ -0,0 +1,35 @@
+#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