More rFile cleanups and fixes.
Was using fileExists/dirExists before when really should have just been exists. File or Dir doesn't matter and would only create false negatives.
Current working directory shouldn't really be used at all. This is just the folder the application is run from (not even where the .exe resides).
Some of the infos required by vfsLocalDir such as executable may not be portable. Not sure of their intended function as they are never used.
Additions and improvements to cellNetCtl
Remove the Soft_OAL line

Because now that the file is integrated with git it so it became unnecessary.
Merge pull request #719 from tambry/cellnetctl

Additions and improvements to cellNetCtl
Fixed error of pull request #719
Init cellSail module
RSX : fix opengl error 0x505
Merge pull request #714 from xsacha/rFile

More rFile cleanups and fixes.
cellGcmSys updated

* cellGcmGetTiledPitchSize (thanks 3141card), cellGcmFunc15.
* sysPrxForUser: _sys_memset
* Created headers cellGcmSys.h and sysPrxForUser.h
* int, int32_t -> s32 and uint32_t -> u32.
Renamed Emu/GS -> Emu/RSX