logic: code controller communication

- Replaced CodeAccess with LocationAccess.
- Implemented basic functionality for CodeController.
- Added messaging to the project.
- Added QtThreadedFunctor to enable our Messaging thread to invoke calls on the QtThread.
- Added GraphController.

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src/lib/component/view/CodeView.h

@@ -3,6 +3,8 @@
 
 #include "component/view/View.h"
 
+class CodeController;
+
 class CodeView: public View
 {
 public:
@@ -13,6 +15,9 @@ public:
 
 	virtual void addCodeSnippet(std::string str) = 0;
 	virtual void clearCodeSnippets() = 0;
+
+private:
+	CodeController* getController();
 };
 
 #endif // CODE_VIEW_H