DW Picker for Gru Rig (face and body)

Gru Rig by Agora
https://agora.community/content/gru-maya

Content:
- Gru_Body_v4.json
- Gru_Face_v2.json
- Gru_Maya_v4.rar - Rig Update:
- - resized textures to smaller size
- - changed eyes geometry and rig, added pupil scale
- - added Global orientation switcher on FK arms