Add LinkPlay integration (#113940)

* Intial commit

* Add artsound as virtual integration

* Add config_flow test
Add linkplay to .coveragerc
Add linkplay to .strict-typing

* Remove artsound component

* Bump package version

* Address mypy and coveragerc

* Address comments

* Address more feedback, add zeroconf and user flow

* Catch broken bridge in async_setup_entry

* Raise ConfigEntryNotReady, add __all__

* Implement new tests for the config_flow

* Fix async warning

* Fix test

* Address feedback

* Address comments

* Address comment

---------

Co-authored-by: Philip Vanloo <26272906+pvanloo@users.noreply.github.com>

homeassistant/generated/zeroconf.py

@@ -589,6 +589,11 @@ ZEROCONF = {
             "name": "gateway*",
         },
     ],
+    "_linkplay._tcp.local.": [
+        {
+            "domain": "linkplay",
+        },
+    ],
     "_lookin._tcp.local.": [
         {
             "domain": "lookin",