Validate component usage (#23037)

* Update manifest validator

* Update circle

* Update text

* Typo

* fix link to codeowners

* Merge CODEOWNERS into hassfest

* Annotate errors with fixable

* Convert error to warning

* Lint

* Make abs path

* Python 3.5...

* Typo

* Fix tests

homeassistant/components/demo/manifest.json

@@ -5,7 +5,9 @@
   "requirements": [],
   "dependencies": [
     "conversation",
-    "zone"
+    "zone",
+    "group",
+    "configurator"
   ],
   "codeowners": [
     "@home-assistant/core"