Add additional UX telemetry to the app

[maxatdetroit]

Is your feature request related to a problem? Please describe.

Our current analytics on ddot.info are fairly minimal (mostly limited to number of users and which page they're visiting). Ideally, we'd like to be able to perform some more involved UX analytics to ensure people are finding what they want to find on ddot.info. For example, see some ideas in CityOfDetroit/detroitmi#1280.

Describe the solution you'd like

A couple options would be:

• G4A - pretty minimal and would not allow us to perform the involved analysis we would want in CityOfDetroit/detroitmi#1280
• New Relic agent - much more control and can support the requirements in CityOfDetroit/detroitmi#1280, but will take more effort for us to instrument in ddot.info and consume the data in DSA warehouse

For now, we'll update ddot.info to use G4A for some baseline metrics and exploration. In the next couple of months, we'll come back and add custom instrumentation using new relic.