Added mp2 loader plugin, not yet tested.
Updated makefiles for mp3 plugin.
Lzma plugin adapted to Antiryad Gx v6.0.
Adaptation to Antiryad Gx v6.0.
Zstandard plugin adapted to Antiryad Gx v6.0.
Zlibpng plugin adapted to Antiryad Gx v6.0.
Webp plugin adapted to Antiryad Gx v6.0.
Tokamak plugin adapted to Antiryad Gx v6.0.
Tiff plugin adapted to Antiryad Gx v6.0.
Code refactor.
