Updated to match upstream update*.bat files and git ignore file.
Redid the including of PCH headers correctly; included sdk.h in the cpp files.
Removed many includes from header file. Should not change any functionality; but, might cause build errors.
Added Patches/Git/cb_InternalHeadersPCH_scriptedwizard.patch
Used wxSmith from CB 13.12 to generate wxSmith InternalHeadersPCH code; did minor other include changes.