Complete Identity v3 list command filters

Complete the 'group list' and 'user list' filter options following
the refactor in https://review.openstack.org/69878

Change-Id: Ib4af417c56d4f7da4b88852f191af615cc7fa2ec
Merge "Complete Identity v3 list command filters"
Update docs and release notes for 0.4.0

Change-Id: Iad6cfe5dee63adb9e60a0ea9811217b3175eb99c
Merge "Update docs and release notes for 0.4.0"