Conda build not passing tests

[shimwell]

I'm working on a conda package and have now got the package building on the automated_conda_build branch

Unfortunately it is not currently possible to include jupyter-cadquery in the conda package meta.yml. Jupyter-cadquery depends on several packages that are themselves not on conda so it looks like it will be a significant effort to add to conda forge.

As several of the functions in the paramak make use of jupyter-cadquery some of the tests run as part of the conda package build are failing.

There is an open issue on jupyter-cadquery to add the package to conda-forge

In the meantime perhaps we should make jupyter-cadquery an optional dependency so that a conda install can be made?

[shimwell]

conda build is now passing the tests, this is because PR #51 has made jupyter-cadquery an optional dependency