Add a "quirky" mode

[Rudxain]

Activating this mode would change the behavior to be inconsistent with core-utils, but with the bonus of having #13 and access to #15.

It should be activated by using the --quirky flag, no shorthand allowed (to enforce being explicit)

[Rudxain]

If quirky is used, and the user wants both lowercase and uppercase hex simultaneously, then the output should be alternating like this: fEeDfAcE. The order should be random, so sometimes it will start as lowercase, and sometimes uppercase.

This functionality replaces the positional behavior of #13

[Rudxain]

This seems like a bad idea, for similar reasons as https://github.com/Rudxain/xorsum/issues/13#issuecomment-1231314472