Added documentation.
Added type hints.
Added PS2 image functions.
Added drawpalette parameter to nitro.drawNSBMD.
Added RLE compression.
Moved PRS and Huffman compression to C extension.
Improved wii image functions.
Fixed deprecated codecs.open calls.
Fixed alignment issue in nitro.repackNARC.
Dropped support for Python 3.8 and 3.9.