Fixed blitUnsafeCopyMask to match the Normal blitUnsafeCopy, which supports ascending, and descending blits. No more warnings if srcX is smaller than dstX.
Checklist
[x] My code follows the code style of this project.
[ ] My change requires a change to the documentation.
Description
Fixed blitUnsafeCopyMask to match the Normal blitUnsafeCopy, which supports ascending, and descending blits. No more warnings if srcX is smaller than dstX.
Checklist