“AtEjection” event and name for ejection seat/capsule

[tough nimbus]

Would allow for some cool cutscenes

[echo finch]

- ejectsuccess - triggered when player ejection was successful
- ejectfailed - triggered when player ejection was a failure (they hit the ground before ejection completed, or they never tried to eject)```

Coming next version

No names yet, once I add helis and things will add an additional
"ejected heli"

or whatever its called