Add device tracker support for Cisco Mobility Express (#8777)

* Adding cisco me

* Bump version

* Apply suggestions from code review

Co-Authored-By: fbradyirl <fbradyirl@users.noreply.github.com>

* Update device_tracker.cisco_mobility_express.markdown

source/_components/device_tracker.cisco_mobility_express.markdown

@@ -0,0 +1,53 @@
+---
+layout: page
+title: "Cisco Mobility Express"
+description: "Instructions on how to integrate Cisco Mobility Express wireless controllers into Home Assistant."
+date: 2019-02-27 11:59
+sidebar: true
+comments: false
+sharing: true
+footer: true
+logo: cisco.png
+ha_category: Presence Detection
+ha_release: "0.90"
+---
+
+This is a presence detection scanner for [Cisco](https://www.cisco.com) Mobility Express wireless controllers.
+
+To use this device tracker in your installation, add the following to your `configuration.yaml` file:
+
+```yaml
+# Example configuration.yaml entry
+device_tracker:
+  - platform: cisco_mobility_express
+    host: CONTROLLER_IP_ADDRESS
+    username: YOUR_ADMIN_USERNAME
+    password: YOUR_ADMIN_PASSWORD
+```
+
+{% configuration %}
+host:
+  description: The IP address of your controller, e.g., 192.168.10.150.
+  required: true
+  type: string
+username:
+  description: The username of a user with administrative privileges.
+  required: true
+  type: string
+password:
+  description: The password for your given admin account.
+  required: true
+  type: string
+ssl:
+  description: Use HTTPS instead of HTTP to connect.
+  required: false
+  type: boolean
+  default: false
+verify_ssl:
+  description: Enable or disable SSL certificate verification. Set to false if you have a self-signed SSL certificate and haven't installed the CA certificate to enable verification.
+  required: false
+  default: true
+  type: boolean
+{% endconfiguration %}
+
+See the [device tracker component page](/components/device_tracker/) for instructions how to configure the people to be tracked.