* Port DNC quirt
Ports the do-not-clone quirk from SPLURT. This change is not modular.
- Added a fix for cloning heads and brains
- Removed flavor text implications that the order was voluntary
- Quirk renamed from `DNC` to `DNC Order`
- Trait renamed from `TRAIT_NO_CLONE` to `TRAIT_DNC_ORDER`
* Modularize cloning machine DNC check
Moves the code for DNC Order quirk check in the cloning machine into modular space, and removes it from base code.
893a63cd11