Move main executable source to its own directory (#248)

* Move main executable files to their own directory

* Adapt the build to the new file structure

... and fix some weird #include's that were relying on the project root
being an include directory.

Laptop/Encyclopedia_Data_new.cpp

@@ -21,7 +21,7 @@
 	#include "QuestText.h"			//quest: name
 	#include "laptop.h"				//ui positions
 	#include "Utilities.h"
-	#include "Utils/Cursors.h"
+	#include "Cursors.h"
 	#include "sysutil.h"			//extra Buffer for scaling image
 	#include "vsurface.h"			//fill extra buffer with black color
 	#include "Text.h"

Laptop/Encyclopedia_new.cpp

@@ -36,7 +36,7 @@
 	#include "laptop.h"//UI dimensions, mouse regions
 	#include "Utilities.h"//file names
 	#include "vobject.h"//video objects
-	#include "Utils/Cursors.h"
+	#include "Cursors.h"
 	#include "Text.h"//button text
 	#include "Button System.h"
 	#include "Encyclopedia_new.h"