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.

Utils/WordWrap.h

@@ -2,8 +2,8 @@
 #define	__WORDWRAP_H_
 
 #include "types.h"
-#include "LAPTOP\files.h"
-#include "LAPTOP\email.h"
+#include "files.h"
+#include "email.h"
 
 //Flags for DrawTextToScreen()