Genius hub (#8815)

* Manual registration/de-registration support.

* Move registration/de-registration to a service.

* 🔨 Move it to the right direction

- Added variable configuration
- Fixed the example script and split it

* Added Genius Hub

* Revert lightwvave changes.

* Update markdown

* fix a small bug

* ✏️ Tweak

* token: and host: now separate

* ✏️ Tweak

After this commit we can merge it and add it to the milestone

* ✏️ Tweak

* ✏️ Make urls clickable

source/_components/geniushub.markdown

@@ -0,0 +1,77 @@
+---
+layout: page
+title: "Genius Hub"
+description: "Instructions on how to integrate Genius Hub with Home Assistant."
+date: 2019-03-03 16:00
+sidebar: true
+comments: false
+sharing: true
+footer: true
+logo: geniushub.png
+ha_category:
+  - Climate
+ha_release: 0.92
+ha_iot_class: Local Polling
+---
+
+The `geniushub` integration links Home Assistant with your Genius Hub for controlling climate devices (the hub does not have to be in the same network as HA).
+
+Each Zone controlled by your Genius hub will report back the state, mode, setpoint and temperature. Other properties are available via the device's `state_attributes`.
+
+It uses this PyPi client library: [https://pypi.org/project/geniushub-client/](https://pypi.org/project/geniushub-client/)
+
+There are two distinct options for accessing a Genius Hub:
+
+### {% linkable_title Option 1: hub token only %}
+
+ - requires a **hub token** obtained from [https://my.geniushub.co.uk/tokens](https://my.geniushub.co.uk/tokens)
+ - uses the v1 API - which is well-documented
+ - polls Heat Genius' own servers (so is slower, say 10-20s response time)
+
+### {% linkable_title Option 2: hub hostname/address with user credentials %}
+
+ - requires your **username** & **password**, as used with [https://www.geniushub.co.uk/app](https://www.geniushub.co.uk/app)
+ - uses the v3 API - results are WIP and may not be what you expect
+ - polls the hub directly (so is faster, say 1s response time)
+
+## {% linkable_title Configuration %}
+
+To add your Genius Hub into your Home Assistant installation, add one of the following to your `configuration.yaml` file.
+
+If you want to poll Heat Genius' own servers:
+
+```yaml
+# Example configuration.yaml entry, using a Hub Token
+geniushub:
+  token: GENIUS_HUB_TOKEN
+```
+Alternatively, if you want to poll the hub directly:
+
+```yaml
+# Example configuration.yaml entry, directly polling the Hub
+geniushub:
+  host: IP_ADDRESS
+  username: GENIUS_HUB_USERNAME
+  password: GENIUS_HUB_PASSWORD
+```
+
+Note that if a `host` is used instead of `token`, then the `username` and `password` are also required.
+
+{% configuration %}
+token:
+  description: The Hub Token of the Genius Hub
+  required: true
+  type: string
+host:
+  description: The hostname/IP address of the Genius Hub
+  required: true
+  type: string
+username:
+  description: Your Genius Hub username
+  required: false
+  type: string
+password:
+  description: Your Genius Hub password
+  required: false
+  type: integer
+{% endconfiguration %}