Add missing TR profile parameters and correct interval units in snapshot docs

[rawlinp]

This Improvement request (usability, performance, tech debt, etc.) affects these Traffic Control components:

• Traffic Router
• Documentation

Current behavior:

https://traffic-control-cdn.readthedocs.io/en/latest/admin/traffic_router.html#the-traffic-router-profile is currently missing a few parameters:

• certificates.polling.interval (the interval, in milliseconds, on which TR will check for SSL certificates)
• certificate.api.url (yes, it's non-plural. The URL TR will use to get delivery service SSL certificates)
• regional_geoblock.polling.interval (the interval, in milliseconds, on which TR will GET the RGB config file)
• regional_geoblock.polling.url (the URL TR will use to get the RGB config file)
• anonymousip.policy.configuration (The URL of the Anonymous Blocking configuration file. Traffic Router will fetch the file from this URL.)
• anonymousip.polling.url (The URL of the Anonymous IP Database. Traffic Router will fetch the file from this URL.)
• anonymousip.polling.interval (The interval, in milliseconds) that Traffic Router polls the Anonymous Blocking configuration file and Anonymous IP Database.)

Also, https://traffic-control-cdn.readthedocs.io/en/latest/api/v4/cdns_name_snapshot.html and https://traffic-control-cdn.readthedocs.io/en/latest/api/v4/cdns_name_snapshot_new.html mistakenly state that some intervals are in seconds, when they are actually in milliseconds:

• certificates.polling.interval
• coveragezone.polling.interval
• federationmapping.polling.interval
• geolocation.polling.interval
• steeringmapping.polling.interval

New behavior:

The aforementioned documentation issues should be fixed.