Added Mellanox Switch SN2100 and its front-image (#2865)

* Added Mellanox Switch SN2100 and its front-image

* Maybe it'll work without apostrophes?

---------

Co-authored-by: Harry <Harry@cadby.co.uk>

device-types/Mellanox/SN2100.yaml

@@ -0,0 +1,54 @@
+---
+manufacturer: Mellanox
+model: SN2100
+comments: Mellanox SN2100 (https://network.nvidia.com/sites/default/files/doc-2020/pb-sn2100.pdf)
+slug: mellanox-sn2100
+u_height: 1
+weight: 4.54
+weight_unit: kg
+is_full_depth: false
+front_image: true
+console-ports:
+  - name: con0
+    type: usb-mini-a
+module-bays:
+  - name: PSU1
+    position: PSU1
+  - name: PSU2
+    position: PSU2
+interfaces:
+  - name: eth0
+    type: 1000base-t
+    description: Management
+  - name: swp1
+    type: 100gbase-x-qsfp28
+  - name: swp2
+    type: 100gbase-x-qsfp28
+  - name: swp3
+    type: 100gbase-x-qsfp28
+  - name: swp4
+    type: 100gbase-x-qsfp28
+  - name: swp5
+    type: 100gbase-x-qsfp28
+  - name: swp6
+    type: 100gbase-x-qsfp28
+  - name: swp7
+    type: 100gbase-x-qsfp28
+  - name: swp8
+    type: 100gbase-x-qsfp28
+  - name: swp9
+    type: 100gbase-x-qsfp28
+  - name: swp10
+    type: 100gbase-x-qsfp28
+  - name: swp11
+    type: 100gbase-x-qsfp28
+  - name: swp12
+    type: 100gbase-x-qsfp28
+  - name: swp13
+    type: 100gbase-x-qsfp28
+  - name: swp14
+    type: 100gbase-x-qsfp28
+  - name: swp15
+    type: 100gbase-x-qsfp28
+  - name: swp16
+    type: 100gbase-x-qsfp28