Adding Tests: Device Power (#1463)

* broke component validation out to its own function. Adding logic for validating device power input.

* Added console-port poe true for adapters. Updating devices to add proper power sources.

* Adding switches to allow for tests to properly determine POE status.

* Fixing files with missing power definitions.

device-types/TrendNet/TC-P16C5E.yaml

@@ -4,6 +4,7 @@ model: TC-P16C5E
 slug: trendnet-tc-p16c5e
 u_height: 1
 is_full_depth: false
+is_powered: false
 front-ports:
   - name: Port 1
     type: 8p8c

device-types/TrendNet/TC-P24C5E.yaml

@@ -4,6 +4,7 @@ model: TC-P24C5E
 slug: trendnet-tc-p24c5e
 u_height: 1
 is_full_depth: false
+is_powered: false
 front-ports:
   - name: Port 1
     type: 8p8c

device-types/TrendNet/TC-P48C5E.yaml

@@ -4,6 +4,7 @@ model: TC-P48C5E
 slug: trendnet-tc-p48c5e
 u_height: 2
 is_full_depth: false
+is_powered: false
 front-ports:
   - name: Port 1
     type: 8p8c