An image processing library in Rust

Worked on this as a side project. Will generally contain functionalities to open and convert image formats, and do various transformations.

Supported formats

• PBM (Portable Bitmap) - Black and white pixels only, ASCII or binary format
• PPM (Portable Pixmap) - RGB color, uncompressed ASCII or binary data

Chore

• Current PBM and PPM implementation mixes ASCII and binary (e.g, magic number in ASCII but pixels in binary). Need to separate two implementations.