Moves IP Address into their own module

Refactors the plugin to move the IP Address calls and associated tests
into separate submodules for better readability.
Moves ports into a submodule

Moves ports and their associated tests into separate modules for
improved plugin readability.
Pulls routes out into a submodule

Refactors plugin.py and associated tests to pull routes out into their
own submodule for improved plugin readability.
Moves subnets into a submodule

Refactors plugin.py by moving subnets functions and their associated
tests into submodules for better plugin readability.
Moves networks into a submodule

Refactors plugin.py by moving networks functions and their associated
tests into separate submodules for easier plugin readability.
Merge pull request #135 from Cerberus98/ip_addresses_submod

Moves IP Address into their own module.

LGTM and tests pass
Merge pull request #137 from Cerberus98/ports_submod

Ports submod

Tests pass.  The test count was lower, but I bet it is up after the merge
Merge pull request #138 from Cerberus98/routes_submod

Routes submod
Merge pull request #139 from Cerberus98/subnets_submod

Subnets submod
Merge pull request #140 from Cerberus98/networks_submod

Networks submod
Moves quota config back to plugin

Moves the quota configuration lines back into plugin.py which in turn
solves a weird dependency issue when loading the Quark quota driver via
the neutron.conf.
Merge pull request #142 from Cerberus98/quota_driver_pathing

Moves quota config back to plugin
Fakes out net and port status fixes quoting
Merge pull request #143 from Cerberus98/status

Fakes out net and port status fixes quoting
Adds more coverage to quark plugin modules
Merge pull request #144 from Cerberus98/coverage

Adds more coverage to quark plugin modules
Just force the network backref always
Merge pull request #145 from Cerberus98/backref_fix

Backref fix
Adds coverage for net strategies
Merge pull request #146 from Cerberus98/moar_coverage

Adds coverage for net strategies