Updated AGM-Civilians

Players can restrain Civilians
Players can escort Civilians
Doesn't isKindOf 'Civilian' restrict the target to only being classes that descend from the Civilian class rather than all civilians? Would
```
(side AGM_Interaction_Target) == civilian
```
be better? I know Arma gets a bit weird with who is classified as a civilian though but it does possibly exclude modded civilians.

cc: @KoffeinFlummi / @commy2