Overhaul readme and add new instructions

[queengooborg]

This PR performs a number of updates to the readme to improve the documentation, including separating large sections into their own documents. This provides the benefit of consolidating the readme without losing any details.

In particular, this PR performs the following:

• General Cleanup
  • Format Readme using Prettier
  • Bambulab -> Bambu Lab
  • "github" -> "GitHub"
  • Convert date format to international format
• Rearrangements
  • Rearrange sections for better flow
  • Move details of Bambu Lab RFID tag blocks to its own document
  • Move key derivation script to its own file
  • Move legacy sniffing instructions to its own document to de-clutter the Readme
• New Info
  • Re-add link to Discord
  • Require the Iceman fork of pm3
  • An AMS is no longer required equipment
  • Add Creality RFID tag format info
  • Add instructions on how to use key derivation to obtain tag data
  • Add instructions for Flipper Zero usage
• Updated Sections
  • Simplify instructions for using recovery script
  • Simplify RFID board reverse-engineering section
  • Update "How to contribute"