Update issue templates

Author: tsterbak

.github/ISSUE_TEMPLATE/device-support-request.md

@@ -0,0 +1,21 @@
+---
+name: Device support request
+about: Request support for a new device
+title: ''
+labels: ''
+assignees: ''
+
+---
+
+**Device name**
+Please enter the name of the device you would like to request support for.
+If you know the device code, please also add it here.
+
+**Device images**
+Please provide links to any available images of the device, such as official stock firmware or custom ROMs you would like to install.
+
+**Do you own the device and would be willing to test the installer?**
+- [ ]
+
+**Additional context**
+Please provide any additional context or information that may be helpful in adding support for this device.