Improved cellResc module

* cellResc module improved

* Many changes in this commit are from [DH]: The implementation of
cellRescSetConvertAndFlip, cellRescSetWaitFlip and cellRescSetSrc as
well as all the other changes that are not in cellResc module.

* Fixed another conflict from O1L/rpcs3 (master): Deleted
"cellPhotoUtility" (which already exists in cellPhotoExport)
Now all the conflicts are solved. :-)

NOTE: We should search for a better name for 's_rescInternalInstance'.
This one is just too long and some lines don't even fit in my screen
because of this.