add Visual Studio Debug/Release directories
Add cube map face enums to list of valid texture targets

Add these enums:

GL_TEXTURE_CUBE_MAP_POSITIVE_X, GL_TEXTURE_CUBE_MAP_NEGATIVE_X,
GL_TEXTURE_CUBE_MAP_POSITIVE_Y, GL_TEXTURE_CUBE_MAP_NEGATIVE_Y,
GL_TEXTURE_CUBE_MAP_POSITIVE_Z, GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
Add .opensdf to git ignore list
add ipch folder to .gitignore
fix size of index2Enum array to match change in previous commit
Merge branch 'master' of https://github.com/jra101/regal into jra101
proposed resolution to p3/regal issue #67 from jra101
Initial multi-threading for global context mappings
Initial implementation of Iff::Cleanup for claiming back GL resources, if possible.
Merge remote-tracking branch 'upstream/master'
Merge remote-tracking branch 'github/master' into cass
proposed fix for issue #68 reported by jra101
skeleton for TextureStorage emulation
when the drv version of a texture gets deleted, change the restore target to 0
Merge https://github.com/p3/regal into cass
Merge branch 'master' of https://github.com/jra101/regal
Merge branch 'cass' of https://github.com/p3/regal
fix TargetPath warnings in Visual Studio by setting the TargetName to regal32 or regalm32 for the Regal and Regalm projects
more general proposed solution to issue #68 reported by jra101 for EMU_DSA handling of object deletion
Merge pull request #2 from p3/cass

EMU_DSA object deletion fix proposal
Fix Dsa emulation of renderbuffer objects

Move renderbuffer functions out of dsa framebuffer emulation
Add code to track/restore renderbuffer objects for dsa renderbuffer
emulation
Fix an issue with calling glFramebufferTextureFace on Intel GPUs