When parsing Event Bytes of Old (2.0.1) Slippi files crashes program

[efthymew]

libmelee (including all the way back to version 0.10.1 crashes when reading a 2.0.1 slippi file because it enforces EventType when reading, and in these files you will eventually read the bytes 0x3d from the event bytes, which is not a valid EventType, leading to the crash. is 0x3d not the correct event byte code for gecko codes? See: https://github.com/project-slippi/slippi-wiki/blob/master/SPEC.md#events

[efthymew]

temporary fix is adding 0x3d to the event bytes enum. it appears that the gamestate is valid through the entirety of the calls to .step() after changing this