Added nanoFramework.Device.Bluetooth to API documentation (#210)

***NO_CI***

Author: frobijn

azure-pipelines.yml

@@ -130,6 +130,8 @@ steps:
 - powershell: |
       git clone https://github.com/nanoframework/CoreLibrary.git --recursive --depth 100 -b main libs/CoreLibrary 
 
+      git clone https://github.com/nanoframework/nanoFramework.Device.Bluetooth.git --depth 100 -b main libs/nanoFramework.Device.Bluetooth 
+
       git clone https://github.com/nanoframework/nanoFramework.Device.Can.git --depth 100 -b main libs/nanoFramework.Device.Can 
 
       git clone https://github.com/nanoframework/nanoFramework.Device.OneWire.git --depth 100 -b main libs/nanoFramework.Device.OneWire