Allow space application supporter to access specific stack endpoints.

[monamohebbi]

Issue

Allow space application supporter to access specific stack endpoints.

Context

We are introducing a new role and we want to make sure it has the right access.

Expected result

A space application support should be able access the following endpoints:

GET /v3/stacks/:guid
GET /v3/stacks

Acceptance

A space application supporter would see the same info as a space developer assigned to the same space for these and only these stack endpoints.

Documentation

When I browse to any of these endpoints on v3 docs I can see the Space Application Supporter role in the list of permitted roles with an indication that this role is not fully implemented and the permissions will be changing.

[will-gant]

Starting this now.