Define constraints numbers for the entire body.

[fire]

Is your feature request related to a problem? Please describe. Define constraints for the entire body so full body solving can happen.

Describe the solution you'd like

Bone Name	Required/Optional
neck	Required
head	Required
left/right Eye	Optional
jaw	Optional
hips	Required
spine	Required
chest	Required
upperChest	Optional
left/right Shoulder	Optional
left/right UpperArm	Required
left/right LowerArm	Required
left/right Hand	Required
left/right UpperLeg	Required
left/right LowerLeg	Required
left/right Foot	Required
left/right Toe	Optional
left/right Thumb Proximal, Intermediate, Distal	Optional
left/right Index Proximal, Intermediate, Distal	Optional
left/right Middle Proximal, Intermediate, Distal	Optional
left/right Ring Proximal, Intermediate, Distal	Optional
left/right Little Proximal, Intermediate, Distal	Optional

Describe alternatives you've considered Don't solve this problem.

Additional context Nya.

[fire]

There is a sample script in the demo for pragmatically defining constraints.

https://github.com/V-Sekai/ewbik/blob/fb32562e0878b2820cf65abfd55c66aa7b39874e/demo/n_bone_ik/bone_test_constrain.gd