Added ZimaBoard (#2425)

* Added ZimaBoard

* Added Tech Sheet to ZimaBoard

* Fixed slug of Zimaboard

* Update ZimaBoard.yml

added some extra info

---------

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

device-types/IceWhale/ZimaBoard.yml

@@ -0,0 +1,18 @@
+---
+manufacturer: IceWhale
+model: ZimaBoard
+slug: icewhale-zimaboard
+u_height: 0
+weight: 278
+weight_unit: g
+airflow: passive
+is_full_depth: false
+comments: '[Technical Guide](https://files.seeedstudio.com/wiki/zimaboard/ZimaBoard_User_Manual.pdf)'
+power-ports:
+  - name: DC-in
+    type: dc-terminal
+interfaces:
+  - name: eth0
+    type: 1000base-t
+  - name: eth1
+    type: 1000base-t