Rewrite /cachegroup_fallbacks to Go

[ocket8888]

I'm submitting an ...

improvement request (usability, performance, tech debt, etc.)

Traffic Control components affected ...

• Documentation (possibly)
• Traffic Ops

Current behavior:

/cachegroup_fallbacks is handled by Perl

Expected / new behavior:

/cachegroup_fallbacks should be handled by Go.

Minimum API Version

1.1

Request Methods

• GET
• PUT
• POST
• DELETE

Minimal reproduction of the problem with instructions:

N/A

[mitchell852]

I think this should be deprecated (not rewritten to perl and a deprecation message added to the perl response). This can all be handled using the normal cache group CRUD apis.

[ocket8888]

the decision to either deprecate and/or rewrite the endpoint can't be made here, but once the decision is made this issue can be closed (if appropriate)

[rawlinp]

+1, definitely shouldn't be rewritten. Go cachegroups API supersedes this.

[mhoppa]

#3766 accomplished this @ocket8888 @mitchell852 @rawlinp can you close this?

[ocket8888]

Closed by #3766 - strangely, because that PR was merged before this issue was opened.