Document Actor "Fidget Tables" (#2287)

* Document `func_80034F54` and related data

new name: `UpdateLimbOverrides`
reason:
- `0x814` and `0x940` constants
- `*_OverrideLimbDraw` functions

additionally:
- move constants into `z64animation.h`
- use these constant for existing formulas
- properly name corresponding actors' fields
- add occasional explicit limbs limit constants

* port over the MM "fidget" naming

* remove redundant comments
* move and rename `FIDGET_*` constants
* introduce a `FIDGET_SCALE` constant, as no other value is applied

* remove generally unrelated changes

* apply PR suggestion

Co-authored-by: mzxrules <mzxrules@gmail.com>

* fix (?) fidgetTable size

following the https://github.com/zeldaret/oot/pull/2287#discussion_r1832371833 suggestion

* remove an unused `struct EnMu` field @ `0x024A`

a continuation to the 211263295c
automatic padding commpensates its absence

* remove MM mention as "it would get unruly fast"

https://github.com/zeldaret/oot/pull/2287#discussion_r1833470468

* rename `overridePerLimb` -> `fidgetFrequency`

https://github.com/zeldaret/oot/pull/2287#discussion_r1837211873

* give better names to the constants

https://github.com/zeldaret/oot/pull/2287#discussion_r1837211873

* remove unnecesasry braces from a comment

https://github.com/zeldaret/oot/pull/2287#discussion_r1842642196

* make the comment multiline "officially"

* restore `limbIndex` naming for this PR

https://github.com/zeldaret/oot/pull/2287/commits/43afb7b7cb54aa7b086d8cb7fca4cffaa7d145bf#r1842644602

* apply a PR suggestion

https://github.com/zeldaret/oot/pull/2287#discussion_r1842787653

---------

Co-authored-by: mzxrules <mzxrules@gmail.com>

include/z64actor.h

@@ -14,6 +14,13 @@
 #define MASS_IMMOVABLE 0xFF // Cannot be pushed by OC colliders
 #define MASS_HEAVY 0xFE // Can only be pushed by OC colliders from actors with IMMOVABLE or HEAVY mass.
 
+// These are default parameters used for "animation fidgeting", which procedurally generate actor idle animations.
+// These calculations may be performed within individual actors, or by using fidget tables with `Actor_UpdateFidgetTables`.
+#define FIDGET_FREQ_Y 0x814
+#define FIDGET_FREQ_Z 0x940
+#define FIDGET_FREQ_LIMB 0x32
+#define FIDGET_AMPLITUDE 200.0f
+
 struct Actor;
 struct ActorEntry;
 struct CollisionPoly;
@@ -926,7 +933,7 @@ void func_80034BA0(struct PlayState* play, SkelAnime* skelAnime, OverrideLimbDra
 void func_80034CC4(struct PlayState* play, SkelAnime* skelAnime, OverrideLimbDraw overrideLimbDraw,
                    PostLimbDraw postLimbDraw, Actor* actor, s16 alpha);
 s16 func_80034DD4(Actor* actor, struct PlayState* play, s16 arg2, f32 arg3);
-void func_80034F54(struct PlayState* play, s16* arg1, s16* arg2, s32 arg3);
+void Actor_UpdateFidgetTables(struct PlayState* play, s16* fidgetTableY, s16* fidgetTableZ, s32 tableLen);
 void Actor_Noop(Actor* actor, struct PlayState* play);
 
 void Gfx_DrawDListOpa(struct PlayState* play, Gfx* dlist);