Gevent Monkey Patching issue with Requests

[MJJoyce]

In certain import or execution scenarios we can end up monkey patching ssl after it has already been imported. This can cause known issues in Python >= 3.6.

gevent/gevent#1016

The GUI docs build seems to be running into this issue because the leapseconds.dat file needs fetch (which makes a request call). I can replicate this by deleting my local leapseconds.dat file and attempting to build the GUI docs.

We should move the monkey patch calls in Core and the other repos to address this.

[MJJoyce]

I think putting the monkey patch call at the beginning of ait.core.__init__ and ensuring that our child repos import ait.core first (probably in the ait.<repo>.__init__ file would address this.