Fix units that can't be hit being hit by some things. (#7391)

* Hittable check in checkTarget

* Remove hittable() and checkTarget() overlap

* Make PointBulletType abide collision types

There should probably be a thing for jsonable `buildingFilter`s, in the case that you want something that doesn't target blocks.

* PointBulletTypes should not be reflectable

* oop

* Use targettable instead of hittable

* targetable check for Damage#linecast

* targetable check for defenderAI

* I shot, and then I hit something, but it was some invisible thing in the way, so I guess I missed

core/src/mindustry/entities/abilities/EnergyFieldAbility.java

@@ -101,7 +101,7 @@ public class EnergyFieldAbility extends Ability{
 
             if(hitUnits){
                 Units.nearby(null, rx, ry, range, other -> {
-                    if(other != unit && (other.isFlying() ? targetAir : targetGround)){
+                    if(other != unit && other.checkTarget(targetAir, targetGround) && other.targetable(unit.team)){
                         all.add(other);
                     }
                 });