This functionality was not considered when the module was written, but
there's no reason why it shouldn't be supported.
We had to rework the query string construction and object filtering.
This new functionality allows to filter on arbitrary keys and supports
None values.
This PR fixes various issues with the existing framework, including
querying specific objects using construct_url_4 (i.e.
aci_epg_to_contract and aci_static_binding_to_epg)
When ACI modules are being used for querying MOs, we should not return
the previous state, as there is no previous state, there's only the
current state.
This impacts a lot of tests that were used to testing the current state
as 'previous'.
* ACI: Change result output as discussed
* Update all modules to use new aci.exit_json()
* Update output_level spec and docs
* Fix integration tests
* Small PEP8 fix
* Asorted fixes to tests and aci_rest
* More test fixes and support for ANSIBLE_DEBUG
* Fix another PEP8 issues
* Move response handling inside ACI module
* Reform of ACI error handling and error output
* Diff multiline json output
* Fix a few more tests
* Revert aci_bd tests
* Small correction
* UI change: existing->current, original->previous
* UI change: config->sent
* Update all modules with RETURN values
* Fix a few more tests
* Improve docstring and add 'raw' return value
* Fix thinko
* Fix sanity/pep8 issues
* Rewrite unit tests to comply with new design
