This PR adds support for the OOBM Redfish protocol, implementing a Java client to send HTTP requests to Redfish supported systems.
Implementation overview:
- Redfish Java client: a Java Client for Redfish that makes Redfish actions available to the HA workflow via an OOB driver.
- OOB Redfish driver: a new Out-of-band driver was created for Redfish, allowing to integrate the Redfish Client with the CloudStack Out-of-band management implementation.
Fixes: #3624
