Add "--no-property" option to "volume set" command in v1 and v2
and update the test cases.

Change-Id: Id5660f23b3b2d9aa72f4c16b19ce83f3f7ed2fa4

Notice that patch [1] fixed the error of properties
format for volume qos in volume v2, but there is the
same bug in volume v1, and the patch missed that, so
fix the problem in v1 as well

[1] https://review.openstack.org/#/c/421065/

Partial-Bug: #1656767
Change-Id: I156bf13d164dbd0d0a7ce394964176718c4ff0e5

Supporting "--no-property" option will apply user a convenient
way to clean all properties of volume snapshot in a short command,
and this kind of behavior is the recommended way to devref.
The patch adds "--no-property" option in "volume snapshot set" command,
and update related test cases and devref document.

Change-Id: I5f10cc2b5814553699920c4343995b2e11416e4e
Implements: blueprint allow-overwrite-set-options

Add "--encryption-provider", "--encryption-cipher",
"--encryption-key-size" and "--encryption-control-location"
options to "volume type set" and "volume type create" commands.
Add "--encryption-type" option to "volume type unset",
"volume type list" and "volume type show" commands.

Change-Id: I3572635d5913d971a723a62d7790ffe0f20ec39a
Implements: bp cinder-command-support
Closes-Bug: #1651117

In network_qos_rule_type.py, network_service_provider.py, server.py and
volume_snapshot.py, the description format is using """ """.
In this patch, the former format is replaced with "_description = _( )".

Change-Id: I6863b01d3534e033df745070037ee45286745c92

Add "--bootable", "--non-bootable", "--read-only" and "--read-write" options
to "volume create" command for setting some attributes at the time of crration.

Change-Id: I71b4e9fccb4ee0ab1a90e7179d6d2d34dbbae909
Implements: bp cinder-command-support

Add "--name", "--status" and "--volume" options
to "volume snapshot list" command for filtering results.

Change-Id: I72db1abce7701f31598deec34801a4d1f5713870
Closes-Bug:#1645252