Implements Neutron feature of floating ip associate/disassociate
into OpenStack Client.
Previously, network.find_ip() function only supported to
search floating ip by UUID. Hence, _find_floating_ip()
function is used in floating_ip.py, to search fip both by UUID
and ip_address. [1] adds the ability to find fip object using both UUID
and ip_address. This functionality however, won't be available until
the SDK is released. Hence, we continue to use _find_floating_ip()
method, which was cleaned up by [2] to remove the use of ip_cache.
Once, the SDK is released, we will remove all the usage of
_find_floating_ip() method and instead only use network.find_ip().
[1] https://review.openstack.org/#/c/449879/2
[2] https://review.openstack.org/#/c/447938/
Change-Id: I6c5222287c46ca42365917d2deae70bdb626347
Co-Authored-By: Reedip<reedip.banerjee@nectechnologies.in>
Co-Authored-By: RuiChen<chenrui.momo@gmail.com>
Closes-Bug: #1560297
763c8c5670