Add WatchGuard Firebox M270 (#1826)

* Add WatchGuard Firebox M270

* Add WatchGuard Firebox M270

* Add WatchGuard Firebox M270

* Add WatchGuard Firebox M270

* Add WatchGuard Firebox M270

* Add WatchGuard Firebox M270

* Add WatchGuard Firebox M270

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Co-authored-by: riccardocucia <riccardocucia@gmial.com>
Co-authored-by: Daniel W. Anner <daniel.anner@danstechsupport.com>

device-types/WatchGuard/M270.yaml

@@ -0,0 +1,38 @@
+---
+manufacturer: WatchGuard
+model: M270
+slug: watchguard-firebox-m270
+part_number: M270
+is_full_depth: false
+u_height: 1
+weight: 8.5
+weight_unit: kg
+airflow: front-to-rear
+power-ports:
+  - name: PS1
+    type: iec-60320-c14
+    maximum_draw: 75
+interfaces:
+  - name: '0'
+    type: 1000base-t
+  - name: '1'
+    type: 1000base-t
+  - name: '2'
+    type: 1000base-t
+  - name: '3'
+    type: 1000base-t
+  - name: '4'
+    type: 1000base-t
+  - name: '5'
+    type: 1000base-t
+  - name: '6'
+    type: 1000base-t
+  - name: '7'
+    type: 1000base-t
+console-ports:
+  - name: Console
+    type: rj-45
+  - name: usb1
+    type: usb-a
+  - name: usb2
+    type: usb-a