mics eoc changes

[GuardianDll]

Summary

None

Purpose of change

Few random EoC fixes here and there

Describe the solution

added ability for compare_string to compare more than 1 string; use it in a few instances for simpler syntax; added unit test to confirm it won't break silently
fix vitrified farm not triggering asap, as it was intended - it was caused by eoc triggering on overmap boundary cross, and aborting because the condition "you stand on terrain X" failing; now it queue itself until it can teleport you properly
fix EOC_DIVING_INTO_WATER_CHECK trying to run event eoc - it doesn't work like this, so i simplified it, and added messages to signalize you indeed scrub away stuff

Testing

CI, also visited the quiet farm to confirm it works correctly