Added various safety checks for negative engulfed compound amounts

[hhyyrylainen]

Brief Description of What This PR Does

Hopefully this fixes an actual bug. If nothing else this should at least make it so

Related Issues

Progress Checklist

Note: before starting this checklist the PR should be marked as non-draft.

• PR author has checked that this PR works as intended and doesn't
  break existing features:
  https://wiki.revolutionarygamesstudio.com/wiki/Testing_Checklist
  (this is important as to not waste the time of Thrive team
  members reviewing this PR)
• Initial code review passed (this and further items should not be checked by the PR author)
• Functionality is confirmed working by another person (see above checklist link)
• Final code review is passed and code conforms to the
  styleguide.

Before merging all CI jobs should finish on this PR without errors, if
there are automatically detected style issues they should be fixed by
the PR author. Merging must follow our
styleguide.

[ARecurringProblem]

There's still the issue of the ingested matter sticking around forever, but this solves the problem of forever taking damage from ingesting toxins which fixes a major gameplay issue.

[hhyyrylainen]

I opened a separate issue about the ingested matter bar getting stuck on again as I couldn't find a fix for it: #4794