General:
- Added creategameprojects_force.bat which forces regeneration of VPC scripts.

sp/src/game/client/client_base.vpc:
- Modified to output built binaries to my sourcemods folder.

sp/src/game/client/server_base.vpc:
- Modified to output built binaries to my sourcemods folder.

sp/src/game/client/client_gfx.vpc:
- Removed $SOURCESDK macro as it's no longer necessary.
- Changed to use client_base.vpc as the parent VPC.

sp/src/game/client/client_server.vpc:
- Removed $SOURCESDK macro as it's no longer necessary.
- Changed to use client_base.vpc as the parent VPC.

sp/src/materialsystem/stdshaders/game_shader_dx9_gfx.vpc:
- Changed to use game_shader_dx9_base.vpc as parent VPC.