Brow rigger from Krzym

[miquelcampos]

add the brow rigger from Krzym to the current facial rigging tools

reference and initial source code: http://forum.mgear-framework.com/t/brow-rigger-script/645/11

https://www.dropbox.com/sh/i2je4o3kz38ueow/AABTjeV6JQSxMKyLm_n9mNF_a

[miquelcampos]

• [x] joint position should match edge loop vertex. Not need to offset like lips.

• [x] make the controls size relative to the eyebrow size (this should be applied in all face rigger tools)

• [x] if L and R side is not built at the same time. The controls axis are not working in mirror behavior (need to double-check this)

• [x] Auto skinning not working

• [x] brow tangent have connections in L side but not in R side

[miquelcampos]

• [x] Another issue on non simetrical mode is that the left and right controls numbers are always read from left to right causing this. RIGHT [0, 1, 2, 3] LEFT [0, 1, 2, 3] and it should be more like RIGHT[0, 1, 2, 3] LEFT [3, 2, 1, 0]

[miquelcampos]

@krzymRR @jdrese @jhoolmans Thanks for the feedback. Please add here if you find any other issue :)

[miquelcampos]

• [x] memo: symmetry on, now is creating an extra tangent for the central part

~make central part optional when symmetry is on~

[miquelcampos]

• [x] control size not working correctly in R side if created 1 by 1 (no symmetric build)
• [x] out tangent don't follow
• [x] bad naming in export menu interface .lips and not .brows (the export file is using .brows extension)
• [x] hierarchy structure is not correct when L and R created 1 by 1
• [x] tangent out not mirror behaviour

[miquelcampos]

• [x] secondary control R side start with index 1, should start index 0

[miquelcampos]

• [x] add custom pickwalk + tag as control
• [ ] add joint should use same system as shifter addJoint (This should be in all facial rigging tools)
• [ ] check from where is this warning: # Warning: Too many coincident knots. Maximum allowed is degree #
• [ ] review and refactor extra modules (helpers.py, lib.py, constrains.py) add to mGear core as much as possible
• [ ] check the creation of wires. Looks like is too many and some are failing