fastdmm2.ss13.io cannot load tgstation and probably others due to BYOND version

[rdragan]

Seems that https://fastdmm2.ss13.io/ can't load maps from the tgstation repo due to 514 being required now.

[martinlyra]

This happens because the codebase does not have !define(FASTDMM) in the conditional, the same way it skips around SpacemanDMM with !define(SPACEMAN_DMM)

This line
https://github.com/tgstation/tgstation/blob/d053c275ced1431d5b4e50656d6e2769dcc3df2f/code/_compile_options.dm#L57

#if (DM_VERSION < MIN_COMPILER_VERSION || DM_BUILD < MIN_COMPILER_BUILD) && !defined(SPACEMAN_DMM)

Could be changed to

#if (DM_VERSION < MIN_COMPILER_VERSION || DM_BUILD < MIN_COMPILER_BUILD) && !(defined(SPACEMAN_DMM) || defined(FASTDMM))

This is not an issue with FastDMM2. Sure, it is an oversight. But this one's on the codebase.