Bug: Cannot enter HEX values for flags

[UsakoSenpai]

Problem:

• The RFID toothbrush password challenge doesn't accept colons in the flag value. The challenge text does not indicate that colons should be removed before entering the value.
• It seems this is also a problem for WEP challenge flags, but that is documented on the wiki. The RFID toothbrush challenge not being able to accept colons in the flag value is not (or I missed it if it is).

Additional Notes

• The doc for the toothbrush chals needs some love as is as well. ❤️

Expected result

• The password can be entered into the scoreboard as a HEX value (with colons) OR the challenge text indicates that colons MUST be removed. ( Prefer the former 🙏 ❤️ )

Steps to Reproduce

1. Attempt to answer the toothbrush password challenge with a correct HEX value without removing colons
2. The answer is flagged as a FAILURE

[Gobo42]

This is not a bug. the flags that are given to me do not have colons in them and therefore are not put in with colons. If I'm given an additional flag with colons, then it would work.