Added more actor types and some defines (#194)

* Added more actor types and some defines

Also adjusted the generic Actor struct to have some of its members
 have names that are generally reasonable for all types of actors

Added a union to the BananActor struct, makes accessing the `rot`
 member and the overlapping id/index members more sensible

Signed-off-by: Taggerung <tyler.taggerung@gmail.com>

src/math_util.c

@@ -118,7 +118,7 @@ void *vec3f_copy(Vec3f dest, Vec3f src) {
     return &dest; //! warning: function returns address of local variable
 }
 
-void func_802B5304(Vec3s dest, Vec3s src) {
+void vec3s_copy(Vec3s dest, Vec3s src) {
     dest[0] = src[0];
     dest[1] = src[1];
     dest[2] = src[2];