Add ability to assign and remove a server capability for multiple servers at a time

[rawlinp]

I'm submitting a ...

• new feature / enhancement request

Traffic Control components affected ...

• Traffic Ops
• Traffic Portal

Current behavior:

There is no way to apply a server capability to more than one server at a time (in the UI or the API). Using the API is a lot faster than using the UI to mass-assign capabilities, but it would be much easier if both the API and UI supported the ability to assign a server capability to more than one server at a time.

New behavior:

Add the ability to mass-assign (and mass-remove) a server capability to more than one server at a time. This should probably be a new TO API route. When in Traffic Portal, going to Configure > Server Capabilities > select server capability > View servers should be similar to how DS-server assignments are handled in TP (i.e. Services > Delivery Services > select delivery service > More > Manage servers > More > Assign servers. The way you can type in the search bar to filter across all fields would be similarly useful in the case of mass-applying server capabilities.

Minimal reproduction of the problem with instructions:

Configure > Servers > select server > More > manage capabilities > +

[srijeet0406]

This was earlier linked to #6996 and #7020. However, those PRs are for adding the ability to add/remove multiple capabilities to a single server. What this issue talks about is the ability to add/ remove a capability to multiple servers at the same time.

@rimashah25 correct me if I'm wrong here.

[rimashah25]

@srijeet0406, You are right. I created a new feature request (#7078) for #6996 and #7020.