Add ability for TR to strip its special query params from responses

[rawlinp]

What does this PR (Pull Request) do?

If enabled, strip the 'trred' and 'fakeClientIpAddress' query parameters
from the response URL(s) returned in TR's response.

• This PR fixes [TC-284] Strip "actionable" query strings #1065

Which Traffic Control components are affected by this PR?

• Documentation
• Traffic Router

What is the best way to verify this PR?

Ensure the TR tests pass.
Add the TR profile parameter:

name: strip.special.query.params
file: CRConfig.json
value: true

snapshot the CDN, make requests to TR using query parameters trred and fakeClientIpAddress, and ensure that they're stripped from the responses. Set the TR profile parameter to false, snapshot the CDN, and repeat the requests. Ensure that the special query parameters are not stripped from the responses.

The following criteria are ALL met by this PR

• This PR includes tests
• This PR includes documentation
• This PR includes an update to CHANGELOG.md
• This PR includes any and all required license headers
• This PR DOES NOT FIX A SERIOUS SECURITY VULNERABILITY (see the Apache Software Foundation's security guidelines for details)

[zrhoffman]

Yep this strips TR's special query params. As documented, not stripping format makes sense.

Code, docs, and changelog entry look good also.