Eases implementation of new maps with diverse scripted attackers, refs #5040, D11 and map difficulties, refs #4963, D1189.
Replaces hardcoded templatenames with calls to a new TriggerHelper function to query template names, given Classes, Civ, Rank or Packed state.
Removes the duplicated template counting logic, that was intertwined with map specific unit classes balancing logic, refs #4805.
Use mimos garrison function from rP20659 / D1146 to support doubleclicking on garrisoned gaia heroes on Danubius, fixing the bug described in comment:10 of #4291.
Fix wrong (Trigger) prototype reference in rP21416.