This patch adds a base jsonschema framework.
This patch follows the Nova-Schema-framework:
https://github.com/openstack/nova/tree/master/nova/api/validation
Partial-Implements: blueprint tosca-csar-mgmt-driver
Co-Author: Neha Alhat <neha.alhat@nttdata.com>
Change-Id: I6ffeaaffb92fa9949a439a049f3092878b884634