Broken network manager report URLs

[RichLandau1]

The report URLs such defined in network_manager.py such as nm_get_reports_hex fail due to two problems:

1. The manager expects the form (hex) to be a query parameter, such as /agents/eid/<id>/reports?form=hex. ANMS is using /agents/eid/<id>/reports/hex.
2. The content type from the manager is text/plain, while ANMS is attempting to parse it as JSON. This causes an exception to be thrown in the handler.

[BrianSipos]

There are some vestigial pass-through endpoints in anms-core which are not actually used by the ANMS UI/frontend and should probably be removed to avoid confusion. This discrepancy appears to be one of those.

I recommend to use the AMP manager API directly, which is accessible through the ANMS (frontend) under /nm/nm/... paths as seen in the checkout test suite as an example.