Fix plotting issues

[AntoineGautier]

This closes #599.

[AntoineGautier]

@karthikeyad-pnnl Can you check that this solves the issue we discussed a few weeks ago?

• Check out this branch and the one from Fix plotting issues funnel#88
• Uninstall buildingspy and pyfunnel from your Python environment.
• Add the path to the local clone of BuildingsPy and funnel to PYTHONPATH.
• Run unit tests on a package of MBL after modifying a validation model to trigger the plotting of the new trajectories.
• Let me know if the execution still hangs or if you can proceed as expected.

[karthikeyad-pnnl]

@AntoineGautier I tested this out on both Linux and Windows. The unit tests run smoother now, and are no longer hanging up when the reference results change. Thanks for resolving this issue!

[mwetter]

See inline comment.

[mwetter]

@AntoineGautier : Please go ahead and merge it once funnel is released as 1.0.3

[AntoineGautier]

@karthikeyad-pnnl I've added new commits to fix #605.
Can you check again that this branch works well on your system, following the same steps as last time?

• Check out this branch and the one from Fix plotting issues funnel#89
• Uninstall buildingspy and pyfunnel from your Python environment.
• Add the path to the local clone of BuildingsPy and funnel to PYTHONPATH.
• Run unit tests on a package of MBL after modifying a validation model to trigger the plotting of the new trajectories.
• Let me know if the execution still hangs or if you can proceed as expected.

[karthikeyad-pnnl]

@AntoineGautier Sorry I had completely missed this message. I updated my funnel and buildingspy packages to the latest development branches, and tested it on both Linux and Windows. The unit test is working as expected. Thanks for the updates!

[AntoineGautier]

@mwetter This is ready to merge.
I think we can close #606 that is likely to be addressed with this PR.