New - Palo Alto Sensor Documentation

I did a PR on the main branch for the `Palo Alto` sensor, this is the supporting documentation.

source/_components/sensor.paloalto.markdown

@@ -0,0 +1,74 @@
+---
+layout: page
+title: "Palo Alto Sensor"
+description: "Palo Alto Device integration into Home Assistant."
+date: 2018-03-04 16:30
+sidebar: true
+comments: false
+sharing: true
+footer: true
+ha_category: System Monitor
+ha_iot_class: "Local Polling"
+logo: palo_alto.png
+ha_release: 0.65
+---
+
+
+The `paloalto` sensor platform is displaying the statistical summary of a [Palo Alto](https://www.paloaltonetworks.com/) device.
+
+To enable this sensor, add the following lines to your `configuration.yaml` file for a GET request:
+
+```yaml
+# Example configuration.yaml entry
+sensor:
+  - platform: paloalto
+```
+
+Configuration variables:
+
+- **ip_address** (*Required*): The IP address of the Palo Alto device.
+- **api_key** (*Required*): The `api_key` for authentication.
+- **ssl** (*Optional*): If `true`, use SSL/TLS to connect to the Palo Alto device. Defaults to `False`.
+- **verify_ssl** (*Optional*): Verify the certification of the system. Default to `True`.
+- **scan_interval**: Indicates how often the sensor should update. Defaults to `120` seconds.
+- **monitored_conditions** (*Optional*): Defines the stats to monitor as sensors.
+  - **host_name**: Host Name of the device.
+  - **up_time**: Up time of the device.
+  - **serial_no**: Serial Number of the device.
+  - **sw_version**: Software version installed on the device.
+  - **gp_version**: Global Protect version installed on the device.
+  - **logdb_version**: Log Db version installed on the device.
+  - **operation_mode**: Operating mode of the device.
+  - **core_temp**: Core temperature of the device.
+  - **sys_temp**: System temperature of the device.
+  - **gp_user_count**: Global Protect logged in user count.
+  - **gp_users**: Global Protect logged in users (comma seperated list).
+  - **loggedin_user_count**: Count of currently logged in users.
+  - **loggedin_users**: Currently logged in users.
+
+Sample configuration:
+
+```yaml
+# Sample configuration.yaml entry
+sensor:
+  - platform: paloalto
+    api_key: !secret paloalto_authkey
+    ip_address: !secret paloalto_hostip
+    ssl: True
+    verify_ssl: False
+    scan_interval: 120
+    monitored_conditions:
+      - host_name
+      - up_time
+      - serial_no
+      - sw_version
+      - gp_version
+      - logdb_version
+      - operation_mode
+      - core_temp
+      - sys_temp
+      - gp_users
+      - gp_user_count
+      - loggedin_user_count
+      - loggedin_users
+```