Actor Struct Changes (and a few related things) (#617)

* reformat header

* type -> category

* done for now i think

* some more stuff

* first -> head

* focus

* flag comment

* ground -> floor

* remove asm, name wrapper funcs

* name func, format

* review

* targetPriority, format

* git subrepo pull --force tools/ZAPD

subrepo:
  subdir:   "tools/ZAPD"
  merged:   "0305ec2c2"
upstream:
  origin:   "https://github.com/zeldaret/ZAPD.git"
  branch:   "master"
  commit:   "0305ec2c2"
git-subrepo:
  version:  "0.4.3"
  origin:   "https://github.com/ingydotnet/git-subrepo.git"
  commit:   "2f68596"

* comment

* review

* feet flags

* horse shadow

src/overlays/effects/ovl_Effect_Ss_Sibuki/z_eff_ss_sibuki.c

@@ -87,7 +87,7 @@ void EffectSsSibuki_Update(GlobalContext* globalCtx, u32 index, EffectSs* this)
     s16 yaw;
     Player* player = PLAYER;
 
-    if (this->pos.y <= player->actor.groundY) {
+    if (this->pos.y <= player->actor.floorHeight) {
         this->life = 0;
     }