[API] Sub devices and areas (#8544)

Co-authored-by: J. Nick Koston <nick@koston.org>
Co-authored-by: Jesse Hills <3060199+jesserockz@users.noreply.github.com>
Co-authored-by: J. Nick Koston <nick+github@koston.org>

tests/components/remote_transmitter/common-buttons.yaml

@@ -115,7 +115,7 @@ button:
         address: 0x00
         command: 0x0B
   - platform: template
-    name: RC5
+    name: RC5 Raw
     on_press:
       remote_transmitter.transmit_raw:
         code: [1000, -1000]