[Technical debt] Ares uses strings instead of bytes for everything

[SkeletalDemise]

Ares currently uses strings in decoders, checkers, and the searcher. This causes a problem when attempting to add support for modern encryption like XOR as results will not be in UTF-8 strings but bytes.

Furthermore Ares should not assume that results from decoders will be in UTF-8. They could be in other encodings like UTF-16, UTF-32, etc.

The solution is to refactor Ares to use bytes for everything. This will allow us to implement modern encryption like XOR, AES, DES, etc. and support for other text encodings.

[SkeletalDemise]

This also prevents us from implementing decompressors for Deflate, Gzip, LZMA, etc.