Remove cliconf from httpapi connection (#46813)

* Bare minimum rip out cliconf

* nxapi changeover

* Update documentation, move options

* Memoize device_info

* Gratuitous rename to underscore use of local api implementation

Fixup eos module_utils like nxos

* Streamline version and image scans

* Expose get_capabilities through module_utils

* Add load_config to module_utils

* Support rpcs using both args and kwargs

* Add get_config for nxos

* Add get_diff

* module context, pulled from nxapi

We could probably do this correctly later

* Fix eos issues

* Limit connection._sub_plugin to only one plugin

lib/ansible/module_utils/connection.py

@@ -100,10 +100,7 @@ def exec_command(module, command):
 def request_builder(method_, *args, **kwargs):
     reqid = str(uuid.uuid4())
     req = {'jsonrpc': '2.0', 'method': method_, 'id': reqid}
-
-    params = args or kwargs or None
-    if params:
-        req['params'] = params
+    req['params'] = (args, kwargs)
 
     return req