updated help message

fixed bug where the encoded string would not be printed to console in interactive mode

Update README.md

updated readme

Merge branch 'main' of github.com:AGejr/rust_huffman_compression

refactored some code, added interactive mode and support for reading files as text or binary

added support for interactive mode

added interactive mode and binary arg

Update README.md

added help message

simplified main

moved functionality into separate file and cleaned up a bit

added argument parsing to tool

the cli tool is now able to compress (but not decompress) files

cleaned up and refactored code