[micro_ai] tag: simplify how sticky BCAs are set up
[micro_ai] tag: simplify how CA id and eval/exec function names are set up
All Animal MAIs: add optional ca_score parameter
All Guardian MAIs: add optional ca_score parameter
Patrol MAI: add optional ca_score parameter
Recruiting MAI: add optional ca_score parameter
Bottleneck MAI: add optional ca_score parameter
Lurkers MAI: add optional ca_score parameter
Healer support MAI: add comment about CA scores being hard-coded
Protect Unit MAI: slight adjustment of evaluation scores

and add comment about them being hardcoded.