Changes

Expose GalimulatorImplementation.crash methods

These methods are frequently used in SLAPI and in other mods,
so it makes sense to provide API replacements for them.

Also this commit doesn't compile on my machine, but I don't see
why so perhaps it might work on CI/CD? I should really fix
the gradle setup though, but I am too tired at this point in time.
The error seems to come from gslStarplane's gradle backwards compat
code breaking, so I am a bit too tired to deal with it all. Sorry :/
 (commit: 71ae719)