Fixes for blender 4.0

Update readme.

Version bump

Reverse sign of weave up/down so that positive numbers move in the direction of the normal.

Change percentages to actually be out of 100.

Update to blender 2.80

get_medial_twill_twists shortcut

Improve remesh_medial

Bump version and minor tweaks

Assign unique materials as needed

Fix UV wrapping to be properly cyclic.

Write UVs for ribbons.

Fix strand coloring after remeshing

Introduce medial remeshing

Support remeshing.