[OPENGL32] - Get rid of the TLS based implementation CORE-14024
[OPENGL32] - Get rid of the default stub table, use NULL instead - Simplify stub code by using the appropriate macros CORE-14024
[OPENGL32] - Implement storing thread data into the TEB CORE-14024
Git conversion: Make reactos the root directory, move rosapps, rostests, wallpapers into modules, and delete rossubsys.