Allow filtering of roles by name instead of number

itacloud-2961
Fix filtering roles by name

itacloud-2961
Fix tests, better naming

itacloud-2961
Change CustomerRoleField, add test for filtering by the owner role PK

ITACLOUD-2961
Fail fast when modifying VM with unsafe links

- NC-243
- REST only check for VM's cloud project membership state.
Add a test for a conflicting instance state
Format role type filtering doc

ITACLOUD-2961

Conflicts:
	docs/api/customer.rst
Fix tenant-id during subnet creation

NC-256
Merge branch 'feature/itacloud-2961-2' into 'develop'

Filtering customers by role string, rebased itacloud-2961 branch
Merge branch 'feature/nc-256' into 'develop'

Fix subnet's tenant, NC-256
Merge branch 'feature/nc-243' into 'develop'

Feature/nc 243 - fail fast when trying to modify via REST instance connected to an erred CPM
Fix customer permission filtering by role type

ITACLOUD-2961
Merge branch 'feature/itacloud-2961-2' into 'develop'

Feature/itacloud 2961 2