Create Space Application Supporter role in ccdb and allow role to be assigned to a user

[MerricdeLauney]

Issue

Create Space Application Supporter role in ccdb and allow role to be assigned to a user.

Context

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

Expected result

As admin or space manager
I want to assign the role Space Application Supporter to a user in my space
So that the user and space guid association is stored in a ccdb table titled to explain the relationship.

Acceptance Criteria

Scenario:
Given I have a user with guid "user_guid" who has the role `organization_user` in an org containing a space with the guid "space_guid"
When I run 
cf curl v3/roles  -d '{
      "type": "space_application_supporter",
      "relationships": {
        "user": {
          "data": {
            "guid": "user-guid"
          }
        },
        "space": {
          "data": {
            "guid": "space-guid"
          }
        }
      }
    }'
Then I get a 201 response with a role returned and can see a table with a relevant title has a row populated with the user and space guid.

Dev Notes:
This should require a migration. Be careful naming the new table and try to match existing naming conventions very closely

Documentation

When I browse to the valid role types in v3 docs I see the new role type listed with an explanation that it is not to be used and is not fully implemented.