Add Switch Zyxel GS1900-8HP (#1269)

* Add Switch Zyxel GS1900-8HP

* Update GS1900-8HP.yaml

Added airflow per manufac. specification

* Update GS1900-8HP.yaml

Updated port naming

* Add quotes to interface name

* Update GS1900-8HP.yaml

Fixed power adapter type

---------

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

device-types/Zyxel/GS1900-8HP.yaml

@@ -0,0 +1,48 @@
+---
+manufacturer: Zyxel
+model: GS1900-8HP
+slug: zyxel-gs1900-8hp
+part_number: GS1900-8HP
+u_height: 0
+is_full_depth: false
+airflow: passive
+comments: '[Zyxel GS1900-8HP 8-port GbE Smart Managed PoE Switch](https://www.zyxelguard.com/GS1900-8HP.asp)'
+weight: 0.72
+weight_unit: kg
+power-ports:
+  - name: PS
+    type: dc-terminal
+    maximum_draw: 90
+interfaces:
+  - name: '1'
+    type: 1000base-t
+    poe_mode: pse
+    poe_type: type2-ieee802.3at
+  - name: '2'
+    type: 1000base-t
+    poe_mode: pse
+    poe_type: type2-ieee802.3at
+  - name: '3'
+    type: 1000base-t
+    poe_mode: pse
+    poe_type: type2-ieee802.3at
+  - name: '4'
+    type: 1000base-t
+    poe_mode: pse
+    poe_type: type2-ieee802.3at
+  - name: '5'
+    type: 1000base-t
+    poe_mode: pse
+    poe_type: type2-ieee802.3at
+  - name: '6'
+    type: 1000base-t
+    poe_mode: pse
+    poe_type: type2-ieee802.3at
+  - name: '7'
+    type: 1000base-t
+    poe_mode: pse
+    poe_type: type2-ieee802.3at
+  - name: '8'
+    type: 1000base-t
+    poe_mode: pse
+    poe_type: type2-ieee802.3at