More unused stuff removal (#49)

* More unused stuff removal

delete:
- giant 'metaheaders' (JA2 All.h, Laptop All.h, etc), preferring to add #includes directly where needed
- unused ExceptionHandling and DbMan translation units
- unused WizShare.h, Bitmap.h, trle.h, video_private.h headers

* remove mentions from vc proj files too

* remove preprocessor conditionals for unused definitions

find . -iname '*.h' -o -iname '*.cpp' -exec unifdef.exe -m -UPRECOMPILED_HEADERS -UJA2_PRECOMPILED_HEADERS -UWIZ8_PRECOMPILED_HEADERS -UPRECOMPILEDHEADERS {} ';'

then manually fixed a couple files the tool errored out on

* yes, the comments too

as title

TileEngine/Ambient Control.cpp

@@ -1,8 +1,5 @@
 #include "builddefines.h"
 
-#ifdef PRECOMPILEDHEADERS
-	#include "TileEngine All.h"
-#else
 	#include "Ambient Control.h"
 	#include "Sound Control.h"
 	#include "Game Events.h"
@@ -14,7 +11,6 @@
 	#include "Strategic Movement.h"
 	#include "Game Clock.h"
 	#include "strategic mines.h"
-#endif
 
 AMBIENTDATA_STRUCT		gAmbData[ MAX_AMBIENT_SOUNDS ];
 INT16					gsNumAmbData = 0;