targets: all
- Fixed SOUND OFF under pokey (atari / atarixl).
- Fixed COLOR function under atari/atarixl.
- Fixed multithread support on REPEAT...UNTIL.
- Hexadecimal initialization for variables (cpc, coleco, c128, atari).
- Refactorized image widht and image height with constants.
- Fixed buffer definition.
- Addeds support for image(s)_load_from_buffer and image_size..
- Factorized image_size for all targets.
- Fixed usage of constants as parameters.
- Fixed POINT / PAINT under zx.
- Fixed PLOT using PAPER color as PEN (gtia, atari, ataqrixl).
- Corrected color cycling effect on autoselection (gtia, atari, atarixl).