Extend Allied Telesis devices with bays and modules (#738)

* Added module bays to x930, x950 and x908Gen2

* Added XEM2 (SB908GEN2 platform) and x930 modules

* Fix numeric-only positions to be treated as string

* Renamed "Bay" to "Slot" to comply with ATI naming

device-types/Allied Telesis/x908Gen2.yaml

@@ -19,3 +19,20 @@ interfaces:
   - name: eth0
     type: 1000base-t
     mgmt_only: true
+module-bays:
+  - name: Slot 1
+    position: '1'
+  - name: Slot 2
+    position: '2'
+  - name: Slot 3
+    position: '3'
+  - name: Slot 4
+    position: '4'
+  - name: Slot 5
+    position: '5'
+  - name: Slot 6
+    position: '6'
+  - name: Slot 7
+    position: '7'
+  - name: Slot 8
+    position: '8'

device-types/Allied Telesis/x930-28GPX.yaml

@@ -103,3 +103,6 @@ interfaces:
   - name: eth0
     type: 1000base-t
     mgmt_only: true
+module-bays:
+  - name: Rear Slot
+    position: '1'

device-types/Allied Telesis/x930-28GSTX.yaml

@@ -104,3 +104,6 @@ interfaces:
   - name: eth0
     type: 1000base-t
     mgmt_only: true
+module-bays:
+  - name: Rear Slot
+    position: '1'

device-types/Allied Telesis/x930-28GTX.yaml

@@ -103,3 +103,6 @@ interfaces:
   - name: eth0
     type: 1000base-t
     mgmt_only: true
+module-bays:
+  - name: Rear Slot
+    position: '1'

device-types/Allied Telesis/x930-52GPX.yaml

@@ -175,3 +175,6 @@ interfaces:
   - name: eth0
     type: 1000base-t
     mgmt_only: true
+module-bays:
+  - name: Rear Slot
+    position: '1'

device-types/Allied Telesis/x930-52GTX.yaml

@@ -175,3 +175,6 @@ interfaces:
   - name: eth0
     type: 1000base-t
     mgmt_only: true
+module-bays:
+  - name: Rear Slot
+    position: '1'

device-types/Allied Telesis/x950-28XSQ.yaml

@@ -103,3 +103,6 @@ interfaces:
   - name: eth0
     type: 1000base-t
     mgmt_only: true
+module-bays:
+  - name: Slot 1
+    position: '1'

device-types/Allied Telesis/x950-28XTQm.yaml

@@ -103,3 +103,6 @@ interfaces:
   - name: eth0
     type: 1000base-t
     mgmt_only: true
+module-bays:
+  - name: Slot 1
+    position: '1'