refactor: removed un-needed comments
feat: add support to select image generation library from the CLI
refactor: only import what we need from awsmfunc instead of the whole module
feat: added a method to check_index_paths(), this function accurately detects the correct extension for the selected indexer
refactor: the default color is now set to a neon green color
feat: optimized code for indexing ffms2 and lsmash
feat: added the ability to accept direct paths to the index for both lsmash/ffms2
fix: fixed a potential bug when it came to creating an index that didn't exist
