Corrrect typos

I can not manage to make a correct use of artifact/cach
I want to reuse files from one to the next...

Add coverage

Add SSH rsync comands

Test doc

Test doc 

Rename test file for clarity

Clean test function of blender, so to remove unnessesray lines

The position orientation of the camera in the environment is directly set
This allow us to use our homogeneous transformation function, and do not rely on blender conventions

Add test from one convention to another convention

commented test, changed the range for elevation and azimuth and added check that max difference is samller 2pi;

remove sphinxarg.ext

gitlab has a new step called flake8
conf.py the ipython directive has been removed

Could not import networkx, which somehow strange.
So we do an explicite install

tox command was not found, we try with pip3 --user install