python-neutronclient implements the following command set:

agent-list, agent-show, agent-delete

These commands display and modify various network agents and their
information.

python-openstacksdk has supported the api calls for these commands,
but python-openstackclient does not implement these commands.

This commit adds support for the following commands:

openstack network agent list
openstack network agent show <agent>
openstack network agent delete <agent>

Change-Id: I83ede6f89c37e7bdc38d7e9e7bb9d80e94c8becc
Implements: blueprint implement-network-agents
Depends-On: I9755637f76787d5fac8ff295ae273b308fcb98d0
Co-Authored-By: Huanxuan Ao <huanxuan.ao@easystack.cn>

According to the code in SDK:
https://github.com/openstack/python-openstacksdk/blob/master/openstack/network/v2/rbac_policy.py#L34
we can see the conlumn of "target_tenant" should be
"targer_project_id" but not "target_project". It is
the reason why could not show the "target_project"
in OSC, so this patch fix it.

Before this change:
(openstack) network rbac show b74fd644-e057-4d44-8ae1-7ca9967ea1e1
+----------------+--------------------------------------+
| Field          | Value                                |
+----------------+--------------------------------------+
| action         | access_as_shared                     |
| id             | b74fd644-e057-4d44-8ae1-7ca9967ea1e1 |
| object_id      | 8735b57f-606a-4f65-9902-2052a6d2a66d |
| object_type    | network                              |
| project_id     | 01c0ba43101b4080a52a5f79a55c56ff     |
| target_project |                                      |
+----------------+--------------------------------------+
After this change:
(openstack) network rbac show b74fd644-e057-4d44-8ae1-7ca9967ea1e1
+-------------------+--------------------------------------+
| Field             | Value                                |
+-------------------+--------------------------------------+
| action            | access_as_shared                     |
| id                | b74fd644-e057-4d44-8ae1-7ca9967ea1e1 |
| object_id         | 8735b57f-606a-4f65-9902-2052a6d2a66d |
| object_type       | network                              |
| project_id        | 01c0ba43101b4080a52a5f79a55c56ff     |
| target_project_id | c7ab4d2ea9e1487095a8ca24ea44ef38     |
+-------------------+--------------------------------------+

Change-Id: I53df127bfc3e43288c6afecdf872e6101b94a658
Closes-Bug: #1608903

Add "network rbac create" and "network rbac delete" commands
and also add unit tests, functional tests, docs and release
note for them.

Change-Id: I5fd58342f2deaa9bae7717412a942a21bbd7d045
Partially-Implements: blueprint neutron-client-rbac

Set identity v3 client in fake so that we needn't
set it everytime when we use it in unit test.

Change-Id: I9ed71056a357642e5aef7b670a7c85918aca59b9

Add the "--enable-port-security" and "--disable-port-security" options
to the "network create" and "network set" commands. This supports setting
the default port security for ports created on a network.

Change-Id: I1deb505bd77cef2e4bc3c2dbbb0c450665136f47
Implements: blueprint neutron-client

1. implement "openstack network rbac list"
2. implement "openstack network rbac show"
3. also add FakeRBACPolicy to test "network rbac xxx" command
The unit test class similar to FakeRouter, which is able to
fake one or more rbac policies. It will be used by the rbac
CRUD patches.

Change-Id: I6c97bc8819698546895fd530464a2cbb347bf77d
Co-Authored-By: Huanxuan Ao <huanxuan.ao@easystack.cn>
Partially-Implements: blueprint neutron-client-rbac
Depends-On: I88f409a24947b67146c0f93ec8480834cef56d2f