Add AIStateMachine::mSMDebug

The patch is exclusively libcwd related.

Turns off output from statemachines to dc::statemachine by default.
Allows to turn on the debug output on a per statemachine basis (at
compile time).

indra/llmessage/aicurleasyrequeststatemachine.h

@@ -52,7 +52,7 @@
 // Construction of a AICurlEasyRequestStateMachine might throw AICurlNoEasyHandle.
 class AICurlEasyRequestStateMachine : public AIStateMachine, public AICurlEasyHandleEvents {
   public:
-	AICurlEasyRequestStateMachine(void);
+	AICurlEasyRequestStateMachine(CWD_ONLY(bool debug = false));
 
 	// Transparent access.
 	AICurlEasyRequest mCurlEasyRequest;