Add WLED support (#1092)

A component to support [WLED](https://github.com/Aircoookie/WLED/wiki/UDP-Realtime-Control).
This allows to control addressable LEDs over WiFi/UDP, by pushing data right into LEDs.

The most useful to use [Prismatik](https://github.com/psieg/Lightpack) to create
an immersive effect on PC.

It supports all WLED protocols:
- WARLS
- DRGB
- DRGBW
- DNRGB
- WLED Notifier

Co-authored-by: Guillermo Ruffino <glm.net@gmail.com>

tests/test3.yaml

@@ -207,6 +207,8 @@ deep_sleep:
   run_duration: 20s
   sleep_duration: 50s
 
+wled:
+
 adalight:
 
 sensor:
@@ -714,6 +716,7 @@ light:
     method: ESP8266_UART0
     num_leds: 100
     effects:
+      - wled:
       - adalight:
           uart_id: adalight_uart
       - e131: