Add "All" group attr to new unit_action_type enums

[Bumber64]

Add enum attrs so all unit_action_type enums are in the All unit_action_type_group.

They may also need attrs for Movement, MovementFeet, Combat, and/or Work (however we decide that).

[myk002]

are these types handled by the action timers API in Units.cpp?

[Bumber64]

are these types handled by the action timers API in Units.cpp?

Looks like HoldItem, Mount, and Dismount are?

ReleaseItem, LeadAnimal, and StopLeadAnimal return nullptr for getActionTimerPointer. So do Jump, ReleaseTerrain, Parry, and Block, despite already being in the All group.

[myk002]

ok, if there are no additional timers to handle, then this looks good to me. will merge after @quietust approves

[myk002]

seems ok -- @quietust please tell me if you have any comments