New version 0.8

New version

Now there is an updated version of the colormesh (0.8) blender addon available
This version contains code in which the two issues I raised in my original post are solved.

Solutions

1. The question on storing data during a blender session is described in my previous post
2. The use of an auxiliary python lib was solved by creating a directory radth-packages in which the extra lib was placed. Within the initialisation of the addon, we add this radth-packages dir to the python load path.