FAF-Lua Version support #1
Description
Add support for the FAF version of the lua language as specified in https://github.com/FAForever/lua-lang/blob/lua-5.0/HISTORY
The length operator # doesn't exist in the FAF version of the lua code as it was implemented in lua 5.1 according to Jip.
Also I implemented the BOM '#**' as a line comment for now, which should(?) be changed later.
Implemented everything from https://github.com/FAForever/lua-lang/blob/lua-5.0/HISTORY besides "the operator ^ means xor instead of pow" and the BOM mentioned above. Seemingly the ^ operator is used as exponentiation in some lua files though, so I don't know what to think/do with that.