Bendy Bones don't work properly

Armory only seems to use the last couple vertices to do the animation/probably IK too (it'd be very nice if IK+bendy bones worked together). The animation in Armory looks (even) worse than in Blender.

[bendybones.zip](https://github.com/armory3d/armory/files/2659771/bendybones.zip)

Start by opening the attached bendybones.zip and reproducing the animation in Blender and Armory. Compare how the bendy-bone vertices and IK behavior differ; done means Armory no longer uses only the last couple of vertices and bendy-bone animation matches Blender, with IK compatibility clarified.

Written by the indexing model from the issue text.