561 remove closures

[SimplyAhmazing]

This PR has several impacts,

• Removes robot singleton
• Removes command queue closures, api calls are direct calls to driver
• Removes upload to Jupyter feature (since commands are no longer stored and cannot be serialized)
• Creates a utils/state.py and refactors methods for querying robot state from flask app
• Removes JSON importer
• Removes threaded test for pausing a running protocol as commands are no longer in a queue. This needs to be re-thought
• Removes enqueue=True from documentation

[coveralls]

Coverage decreased (-0.4%) to 90.742% when pulling d1e1410 on 561-remove-closures into 6ef2a95 on develop.

[coveralls]

Coverage decreased (-0.4%) to 90.727% when pulling fcf9655 on 561-remove-closures into 6ef2a95 on develop.

[astaff]

LGTM

[coveralls]

Coverage decreased (-0.4%) to 90.727% when pulling 8c0f9c0 on 561-remove-closures into 6ef2a95 on develop.

[coveralls]

Coverage decreased (-0.4%) to 90.727% when pulling abc0456 on 561-remove-closures into 6ef2a95 on develop.

[coveralls]

Coverage decreased (-0.4%) to 90.727% when pulling abc0456 on 561-remove-closures into 6ef2a95 on develop.

[coveralls]

Coverage decreased (-0.4%) to 90.727% when pulling 1363abb on 561-remove-closures into 6ef2a95 on develop.

[coveralls]

Coverage decreased (-0.4%) to 90.727% when pulling de63147 on 561-remove-closures into 6ef2a95 on develop.

[coveralls]

Coverage decreased (-0.4%) to 90.711% when pulling f552fea on 561-remove-closures into 6ef2a95 on develop.

[coveralls]

Coverage decreased (-0.4%) to 90.711% when pulling 158a7f9 on 561-remove-closures into 6ef2a95 on develop.