Covers manual registration of resources.

Change-Id: Idbee6ea1dba911cda38a0df307ed94e4ef98900d
Closes-Bug: #1877417

Opendaylight support has been deprecated in Train - time to remove it.

Change-Id: I3a61bfbcbf366c327ea3e25d2424bc3fedca29f0

Add Neutron reference docs, especially a note around
using OVS native firewall driver on recent (4.3+) kernels [1].

[1]: https://docs.openstack.org/neutron/latest/admin/config-ovsfwdriver.html

Change-Id: I6994e364c116234b46f5d5e9f0a4666b83f86375
Closes-Bug: #1653987

The project has been retired and there will be no Train release [1].
This patch removes Neutron LBaaS support in Kolla.

[1] https://review.opendev.org/#/c/658494/

Change-Id: Ic0d3da02b9556a34d8c27ca21a1ebb3af1f5d34c

Change index to ease identify what service want to look.
Split docs into more specific folder such as networking
and storage.

Change-Id: Ic7ac12b3dd555fa5c018eeb897ccd4a5a2dfe8f3