ALL: Ignore XCode project files
CREATE_PROJECT: Enable XCode project provider by default
DISTS: Add create_xcode batch file
CREATE_PROJECT: Make createUUID public
DISTS: Remove existing XCode project
CREATE_PROJECT: Setup main project groups

 - Rewrite object storage and output
 - Output main project objects
CREATE_PROJECT: Implement build phases part of createTarget()
CREATE_PROJECT: Implement file objects helper functions
CREATE_PROJECT: Process and output build files & references
CREATE_PROJECT: Update Xcode project file
CREATE_PROJECT: Fix compilation under XCode/LLVM
CREATE_PROJECT: Remove unused setupResourcesBuildPhase() and misc. cleanups
CREATE_PROJECT: Update Xcode project
MISC: Ignore engine files created for MacOSX and iPhone