- Rename izD3DDefs.h -> izDX9Defs.h
- Add #ifdef - #endif block.
Temporary commit
Modify some resource managements.
Add CBaseTexture::GetTexType().
Remove unused methods.
Move some template methods from header to source.
For GLES2. This is temporary.
- Remove unused method.
- Remove unused enumeration.
  - And not exist in GLES2.
- Refactoring code.
For GLES2. This is temporary commit.
There are no build error in GLES2.