[doc] Add user_id and project_id to snapshot APIs

[OpenStack Infra]

https://review.openstack.org/323547
Dear bug triager. This bug was created since a commit was marked with DOCIMPACT.
Your project "openstack/manila" is set up so that we directly report the documentation bugs against it. If this needs changing, the docimpact-group option needs to be added for the project. You can ask the OpenStack infra team (#openstack-infra on freenode) for help if you need to.

commit eb784f18072bd19bac3d0968e6bfd2af1e192411
Author: Goutham Pacha Ravi <email address hidden>
Date: Mon May 30 15:41:08 2016 -0400

    Add user_id and project_id to snapshot APIs

    In a cloud with multi-tenancy, administrators
    would like to see the project_id of the tenant
    while listing snapshots of all tenants.

    Likewise, we also should expose the user_id field
    as it would help in cases where tenants have multiple
    users.

    DocImpact
    User and administrator references need to capture
    this information.

    APIImpact
    API changes are micro-versioned.

    Change-Id: I3ad655dc9ab7440f205b0e153fccaa99abb79bbd
    Closes-Bug: #1587161

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/645428

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/645428
Committed: https://git.openstack.org/cgit/openstack/manila/commit/?id=f8ddadba8d6d964bca851540efefa434eb7cd814
Submitter: Zuul
Branch: master

commit f8ddadba8d6d964bca851540efefa434eb7cd814
Author: Goutham Pacha Ravi <email address hidden>
Date: Thu Mar 21 17:33:18 2019 -0700

    [doc][api-ref] snapshot user_id and project_id fields

    Patch addresses a documentation gap.

    Change-Id: Ia07218201322fa222474e39e3b44d9dcd68c60aa
    Closes-Bug: #1594372

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/manila 9.0.0.0rc1 release candidate.