Add RDW Vehicle information integration (#20180)

* Add RDW Vehicle information integration

* Binary sensor

source/_integrations/rdw.markdown

@@ -0,0 +1,32 @@
+---
+title: RDW
+description: Instructions on how to integrate RDW vehicle information with Home Assistant.
+ha_category:
+  - Binary Sensor
+  - Car
+  - Sensor
+ha_release: 2021.12
+ha_iot_class: Cloud Poll
+ha_config_flow: true
+ha_quality_scale: platinum
+ha_codeowners:
+  - '@frenck'
+ha_domain: rdw
+ha_platforms:
+  - binary_sensor
+  - sensor
+---
+
+[RDW](https://www.rdw.nl) is the Netherlands Vehicle Authority. Their tasks
+are the licensing of vehicles and vehicle parts, supervision and enforcement,
+registration, information provision, and issuing documents.
+
+The RDW data is open data, available for public use. This integration looks
+up any dutch registered vehicle by its license plate and keeps that
+information in Home Assistant.
+
+This information, and the sensors provided, can be helpful, for example,
+by sending alerts when it is time to get your car checked for the
+required general periodic inspection (APK).
+
+{% include integrations/config_flow.md %}