This requests for the ability to create a variable of exposed enum types in UdonGraph.

UdonGraph currently cannot make a variable of a variety of enum types such as:

* EventTiming - For SendCustomEventDelayedSeconds and SendCustomEventDelayedFrames

* QueryTriggerInteraction - For Physics > Raycast and similar

* HumanBodyBones - For VRCPlayerApi > GetBonePosition and VRCPlayerApi > GetBoneRotation

* VRCPlayerApi.TrackingDataType - For VRCPlayerApi > GetTrackingData

UdonSharp is able to make variables of all of the listed enum types above and more.