Per T328166: AQS 2.0: Reevaluate Go router package, we are converting the router for all the AQS 2.0 services from fasthttp to gorilla/mux. See that task for rationale.
This task covers conversion of the Device Analytics service.
Completion criteria:
- router is converted
- handlers are adjusted to use the standard interface
- any modifications to tests are completed
- "make test" passes
- "make itest" passes
QA needs: this should have no external effect for callers. It is sufficient to ensure that there are no regressions, and that caller-facing functionality is not changed.