Track IP address used for connecting to node

[smsearcy]

Given the possibility of issues with getting the primary/wireless IP address from the API results (e.g. https://github.com/aredn/aredn/issues/758), the poller/collector should capture the IP address used to make a request and store that in the node table (a new connection_ip column?).

Having this address could also be used for resolving topology links to nodes in the database.

I have some other ideas about cleaning up the code for the collector/poller, which I think this is probably a good opportunity for:

• Push results onto one or more deques instead of using gather() (looking ahead to Python 3.11's task groups). Multiple deques could be used to categorize successful results from errors.

[smsearcy]

This was completed in #112 and #113.