Codecrafters git

Solution to the Codecrafters git challenge.

• Everything works.
• Contains comment on code.
• Have minimal usage on unwrap / expect.
• Use minimal possible extra crate 😁.

What can be improved in this code

• For some reason huge repository like CPython does not work ... There may be a bug 🐞.
• Add more unit tests.
• Using Bytes crate more often can make the code simpler.
• Using temporary packet file could avoid having to load the whole .pack file in memory.
• Server response packet-line can be parsed better.