Simple port of something I made for a 2.1 exe mod that Mystic mentioned
needed doing on the 2.2 Priorities topic
(http://mb.srb2.org/showpost.php?p=790613&postcount=4). Adds emblem type
"map", which gives you an emblem upon beating the map it's for. Var sets
more specific conditions; 1 for all emeralds completion, 2 for Ultimate
mode completion, 3 for Perfect Bonus completion. (These can be easily
removed if requested; these were added simply because it was easy to
implement for modders.)

Criticism on the way it's coded and/or how it is implemented is highly
encouraged. Test wad is <root>/TehRealSalt/levelemblems.wad,
pre-compiled exe is <root>/TehRealSalt/levelemblems.exe.