New device type - Brocade G720 (#2892)

* Add files via upload

* Fixed pre-commit issues

---------

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

device-types/Brocade/G720.yaml

@@ -0,0 +1,155 @@
+---
+manufacturer: Brocade
+model: G720
+slug: brocade-g720
+part_number: DS7720B
+is_full_depth: true
+u_height: 1
+weight: 7.34
+weight_unit: kg
+comments: '[Link to Brocade G720 Datasheet](https://docs.broadcom.com/doc/G720-Switch-PB)'
+interfaces:
+  - name: management
+    type: 1000base-t
+    mgmt_only: true
+  - name: FC port 0
+    type: 64gfc-sfpp
+  - name: FC port 1
+    type: 64gfc-sfpp
+  - name: FC port 2
+    type: 64gfc-sfpp
+  - name: FC port 3
+    type: 64gfc-sfpp
+  - name: FC port 4
+    type: 64gfc-sfpp
+  - name: FC port 5
+    type: 64gfc-sfpp
+  - name: FC port 6
+    type: 64gfc-sfpp
+  - name: FC port 7
+    type: 64gfc-sfpp
+  - name: FC port 8
+    type: 64gfc-sfpp
+  - name: FC port 9
+    type: 64gfc-sfpp
+  - name: FC port 10
+    type: 64gfc-sfpp
+  - name: FC port 11
+    type: 64gfc-sfpp
+  - name: FC port 12
+    type: 64gfc-sfpp
+  - name: FC port 13
+    type: 64gfc-sfpp
+  - name: FC port 14
+    type: 64gfc-sfpp
+  - name: FC port 15
+    type: 64gfc-sfpp
+  - name: FC port 16
+    type: 64gfc-sfpp
+  - name: FC port 17
+    type: 64gfc-sfpp
+  - name: FC port 18
+    type: 64gfc-sfpp
+  - name: FC port 19
+    type: 64gfc-sfpp
+  - name: FC port 20
+    type: 64gfc-sfpp
+  - name: FC port 21
+    type: 64gfc-sfpp
+  - name: FC port 22
+    type: 64gfc-sfpp
+  - name: FC port 23
+    type: 64gfc-sfpp
+  - name: FC port 24
+    type: 64gfc-sfpp
+  - name: FC port 25
+    type: 64gfc-sfpp
+  - name: FC port 26
+    type: 64gfc-sfpp
+  - name: FC port 27
+    type: 64gfc-sfpp
+  - name: FC port 28
+    type: 64gfc-sfpp
+  - name: FC port 29
+    type: 64gfc-sfpp
+  - name: FC port 30
+    type: 64gfc-sfpp
+  - name: FC port 31
+    type: 64gfc-sfpp
+  - name: FC port 32
+    type: 64gfc-sfpp
+  - name: FC port 33
+    type: 64gfc-sfpp
+  - name: FC port 34
+    type: 64gfc-sfpp
+  - name: FC port 35
+    type: 64gfc-sfpp
+  - name: FC port 36
+    type: 64gfc-sfpp
+  - name: FC port 37
+    type: 64gfc-sfpp
+  - name: FC port 38
+    type: 64gfc-sfpp
+  - name: FC port 39
+    type: 64gfc-sfpp
+  - name: FC port 40
+    type: 64gfc-sfpp
+  - name: FC port 41
+    type: 64gfc-sfpp
+  - name: FC port 42
+    type: 64gfc-sfpp
+  - name: FC port 43
+    type: 64gfc-sfpp
+  - name: FC port 44
+    type: 64gfc-sfpp
+  - name: FC port 45
+    type: 64gfc-sfpp
+  - name: FC port 46
+    type: 64gfc-sfpp
+  - name: FC port 47
+    type: 64gfc-sfpp
+  - name: FC port 48
+    type: 64gfc-sfpdd
+  - name: FC port 49
+    type: 64gfc-sfpdd
+    description: Only usable with SFP-DD optic in port 48
+  - name: FC port 50
+    type: 64gfc-sfpdd
+  - name: FC port 51
+    type: 64gfc-sfpdd
+    description: Only usable with SFP-DD optic in port 50
+  - name: FC port 52
+    type: 64gfc-sfpdd
+  - name: FC port 53
+    type: 64gfc-sfpdd
+    description: Only usable with SFP-DD optic in port 52
+  - name: FC port 54
+    type: 64gfc-sfpdd
+  - name: FC port 55
+    type: 64gfc-sfpdd
+    description: Only usable with SFP-DD optic in port 54
+  - name: FC port 56
+    type: 64gfc-sfpdd
+  - name: FC port 57
+    type: 64gfc-sfpdd
+    description: Only usable with SFP-DD optic in port 56
+  - name: FC port 58
+    type: 64gfc-sfpdd
+  - name: FC port 59
+    type: 64gfc-sfpdd
+    description: Only usable with SFP-DD optic in port 58
+  - name: FC port 60
+    type: 64gfc-sfpdd
+  - name: FC port 61
+    type: 64gfc-sfpdd
+    description: Only usable with SFP-DD optic in port 60
+  - name: FC port 62
+    type: 64gfc-sfpdd
+  - name: FC port 63
+    type: 64gfc-sfpdd
+    description: Only usable with SFP-DD optic in port 62
+module-bays:
+  - name: PSU0
+    position: '0'
+  - name: PSU1
+    position: '1'