Hi carloss, gouthamr 

I have made the changes we had discussed during mid-cycle and split the changes. Please review.

HPE Driver snapshot changes
https://review.opendev.org/c/openstack/manila/+/992850

Inherit snapshot feature changes
Code: https://review.opendev.org/c/openstack/manila/+/1000068/7
CI: https://review.opendev.org/c/openstack/manila-tempest-plugin/+/994878