[IDH] Integration tests for IDH 3.0.2

Implemented checks:
* templates creation
* cluster provisioning
* scaling
* swift support

Not implemented:
* EDP

Change-Id: I02519920bfe4ee85618fcc49fa4b8b6a4b243326
Implements: blueprint idh3-itests
Merge "[IDH] Integration tests for IDH 3.0.2"