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

Standard Gaming Platform/SGP_VS2005.vcproj

@@ -394,10 +394,6 @@
 				RelativePath=".\english.h"
 				>
 			</File>
-			<File
-				RelativePath=".\ExceptionHandling.h"
-				>
-			</File>
 			<File
 				RelativePath=".\expat.h"
 				>
@@ -450,10 +446,6 @@
 				RelativePath=".\Ja2 Libs.h"
 				>
 			</File>
-			<File
-				RelativePath=".\JA2 SGP ALL.H"
-				>
-			</File>
 			<File
 				RelativePath=".\LibraryDataBase.h"
 				>
@@ -664,10 +656,6 @@
 				RelativePath=".\English.cpp"
 				>
 			</File>
-			<File
-				RelativePath=".\ExceptionHandling.cpp"
-				>
-			</File>
 			<File
 				RelativePath=".\FileCat.cpp"
 				>