Add UpCloud platform (#4543)

* Add UpCloud platform

* Add scan_interval for UpCloud.

* Update upcloud.markdown

* Update switch.upcloud.markdown

* Update binary_sensor.upcloud.markdown

source/_components/binary_sensor.upcloud.markdown

@@ -0,0 +1,34 @@
+---
+layout: page
+title: UpCloud Binary Sensor
+description: Instructions on how to set up UpCloud binary sensors within Home Assistant.
+date: 2018-01-28 20:00
+sidebar: true
+comments: false
+sharing: true
+footer: true
+ha_category: System Monitor
+logo: upcloud.png
+ha_release: 0.65
+ha_iot_class: Cloud Polling
+---
+
+The `upcloud` binary sensor platform allows you to monitor your UpCloud servers.
+
+To use your UpCloud servers, you first have to set up your [UpCloud hub](/components/upcloud/) and then add the following to your `configuration.yaml` file:
+
+```yaml
+# Example configuration.yaml entry
+binary_sensor:
+  - platform: upcloud
+    servers:
+      - 002167b7-4cb1-44b7-869f-e0900ddeeae1
+      - 00886296-6137-4074-afe3-068e16d89d00
+```
+
+{% configuration %}
+servers:
+  description: List of servers you want to monitor.
+  required: true
+  type: list
+{% endconfiguration %}