Effect 6 flag allows cutting of cyan pixels on FOF and PolyObject planes (even if they're translucent)

Remove the multi-file ZB configs. We're stick with the single-file config for ZB and doing all the UDMF stuff in UDB

This reverts commit 2cf94ea6.

Edit config to account for new behaviour (plus add gold mode for the Eggman Statue, which I forgot to add earlier).

Updated the list of which skies are associated with which maps, rearranged the list of character to match the character select in-game, and added myself to the file's credits.

(Re-did all of this because I think I messed up the branches and stuff last time.