Add QNAP NAS TS-1685 (#1376)

* Add QNAP NAS TS-1685

* fixed new line at the and of file

* trailing spaces

* file renamed accordingly

* changed model

* Update TS-1685-D1521-16G-550W.yml

Fixing slug

* Update TS-1685-D1521-16G-550W.yml

Reverting slug because of multiple pn's for this model

---------

Co-authored-by: Mike Stuffel <mike.stuffel@gmail.com>
Co-authored-by: Daniel W. Anner <daniel.anner@danstechsupport.com>

device-types/QNAP/TS-1685-D1521-16G-550W.yml

@@ -0,0 +1,38 @@
+---
+manufacturer: QNAP
+model: TS-1685
+slug: qnap-ts-1685-d1521-16g-550w
+part_number: TS-1685-D1521-16G-550W
+u_height: 0
+is_full_depth: false
+airflow: front-to-rear
+weight: 29.52
+weight_unit: lb
+comments: '[TS-1685-D1521-16G-550W | Hardware Specs | QNAP](https://www.qnap.com/en/product/ts-1685/specs/hardware)'
+power-ports:
+  - name: PSU 1
+    type: iec-60320-c14
+    maximum_draw: 550
+    allocated_draw: 250
+interfaces:
+  - name: eth0
+    type: 1000base-t
+    label: Adapter1
+  - name: eth1
+    type: 1000base-t
+    label: Adapter2
+  - name: eth2
+    type: 1000base-t
+    label: Adapter3
+  - name: eth3
+    type: 1000base-t
+    label: Adapter4
+  - name: eth4
+    type: 1000base-t
+    label: Adapter5
+  - name: eth5
+    type: 10gbase-t
+    label: Adapter5
+  - name: eth6
+    type: 10gbase-t
+    label: Adapter6