Use FakeProject, FakeDomain and FakeUser classes instead
of old test data in image, compute and volume. (This work
has done in network)

Change-Id: Ic37d5d9db98f0f2acc6c714a9646063dcbde4ff3
Partially-Implements: blueprint use-fake-project

Add a attribute "access_project_id" for flavor object to
display the access project id list by using "flavor show"
command.

Change-Id: I7f0c152b816e0ca2e32e47f9b5c1aa7663d33b6d
Closes-Bug:#1575461

Add "--property" option to "flavor create" command to support
adding properties to a new falvor.

Change-Id: I4f06b364375d5a81584fe41122d48e9568fa712a
Closes-Bug: #1596798

Add ``--project`` and ``--project-domain`` options to the
``flavor create`` command. We can use these options to add
the flavor access to a givin project when we create the flavor.

Change-Id: Ic1907272c1d1ae526f9c9e86f32ba06c6da147c0

After this patch, all set/unset commands will return normally
when nothing specified.

Change-Id: Id94d0329faa1a674006a9aae901f834b41917317
Close-bug: #1588588

Support bulk deletion and error handling for "aggregate delete"
and "flavor delete" commands.

Change-Id: I3f6105cbeeab1c9f8cd571c63ce0e7ac3d4252b3
Partially-Implements: blueprint multi-argument-compute
Partial-Bug: #1592906

1. We should assert flavor.set_keys() is called correctly
   or not called in ``set flavor`` unit tests.

2. Commit c7e6973ff50ff84af9ad55f7bdaeeea83ae40f0b from me
   removed test_flavor_unset_no_project which used to test
   if --project was specified as '', and assert CommandError
   was raised, which is incorrect. So I removed it. But after
   looking into the code, I think we should not remove it,
   but specify nothing after --project, and assert
   ParserException was raised. So in this patch, we fix it
   as so.

   ('--project', '') --> ('--project')
   assert CommandError --> assert ParserException

Change-Id: Ifd33c72d5b7581aaabffb09e9b5e38ecc67e18c0