Aspic recipe tweak.

Another use for all those excess bones.
Merge pull request #8001 from Rivet-the-Zombie/aspic-fix

Aspic recipe tweak.
(Blocker-fix) No removing FBA

Fixes #7022.

This is the quickest fix: prohibit removing the FBA.  Once there are
other options, letting folks go to the "useless stump" level might not
be a problem.
Remove damage to animals from acid rain, thought this happened already.
Merge pull request #8002 from KA101/FBAfix

(Blocker-fix) No removing FBA
Merge branch 'no-acid-rain-damage' of https://github.com/kevingranade/Cataclysm-DDA into kevingranade-no-acid-rain-damage
Prevent reinforcing/repairing of spare parts (possibly with the item itself).
Merge pull request #8006 from BevapDin/fix-rags

Prevent reinforcing/repairing of spare parts with themself.