Translation/MMD conversion: option to exclude certain MMD shape keys from translation.

[hanzcvr]

In VRC and CVR (maybe others, I have no knowledge there), MMD worlds and Props are a fairly popular pastime. Aside from the simple 'bodily motion' of the dance, some include animation frames to make your avatar sing along. For this to function, as these dance animations are extracted generally from existing MMD animations, two things must be true:

1. Your 'face' mesh must be named 'Body' (wherever your mouth and eyes are). You'll notice most Booth avatars follow this convention
2. A number of blendshapes (aiueo, various 'emote' type blend shapes) must exist on that Body mesh.

While MMD and general vocaloid culture is very much an international phenomenon, one cannot simply discard its roots in Japan, and a much stronger presence there, so most MMDs use the Japanese names for these blend shapes. You can find a listing of those shapes here

In addition. If there is still a standalone 'translate blend shapes' only (not 'all'), maybe pop a warning that translating the blend shapes could break existing animations for a given avatar.

[RinaDev-xyz]

Once the converter is done and tested I will add something for this maybe an option to prevent it touching those keys.