Add share groups and share group snapshots quotas

"Quota" APIs now will return two new following keys:

- 'share_groups'
- 'share_group_snapshots'

For user and project, but not share type.
Default values can be configured using following config options:

- 'quota_share_groups'
- 'quota_share_group_snapshots'

APIImpact
DocImpact
Implements BluePrint add-share-groups-quota
Change-Id: I397a8e886226cb22fa50abdf2a4a938bb04c655d
4 files changed
tree: 36e2303ea783cfc5184940b9e9f2bcc9478dc010
  1. manila_tempest_tests/