Some changes

[frostmorn]

1. Moving pointers to uintptr_t, this allows to work on x64 arch
2. Restore old linux/sdl code, new Makefile to compile it on linux
3. Removed double buffering part(theoretically u could enable it via macro, but doesn't look like it works for real)
4. Memory bug, nes draws on a bitmap which is created with some additional area, to partitial draw sprites outside of screen
5. Fixed one mistake APU DMC Register, treated as volume + x while in fact should be volume = x
6. Allow to not specify (lockWrite, freeWrite) in custom driver. For now we create bitmap in those functions, which is never used for any other purposes but to display width/heigh in case NOFRENDO_DEBUG_ENABLED