Rename is_powered to _is_powered

The leading underscore makes it obvious that it's a custom property,
and is then consistent with the ports' _is_power_source. Removed it
from device types if it's true (the default).

Author: m-hau

README.md

@@ -9,7 +9,7 @@ is_full_depth: false
 airflow: passive
 weight: 1.14
 weight_unit: kg
-is_powered: false
+_is_powered: false
 front_image: true
 module-bays:
   - name: '1'

device-types/ADC/7033-Fibre-Panel.yaml

@@ -5,7 +5,7 @@ slug: adva-f7-48csm-1hu-19600-19130
 part_number: 1078708781-01
 u_height: 1
 is_full_depth: false
-is_powered: false
+_is_powered: false
 airflow: passive
 front-ports:
   - name: C1

device-types/ADVA/f7-48csm-1hu-19600-19130.yaml

@@ -7,7 +7,7 @@ u_height: 1
 weight: 1.6
 weight_unit: kg
 is_full_depth: false
-is_powered: false
+_is_powered: false
 module-bays:
   - name: A
     position: A

device-types/AFL/FXUCXXBXXX-01BH.yaml

@@ -7,7 +7,7 @@ u_height: 2
 weight: 2.6
 weight_unit: kg
 is_full_depth: false
-is_powered: false
+_is_powered: false
 module-bays:
   - name: A
     position: A

device-types/AFL/FXUCXXBXXX-02BH.yaml

@@ -5,7 +5,7 @@ slug: check-point-cpac-1500-3600-3800-rm-dual
 part_number: CPAC-1500/3600/3800-RM-DUAL
 u_height: 1
 is_full_depth: false
-is_powered: false
+_is_powered: false
 comments: Rack Mount shelf for Single/Dual for 1500/ 3600/ 3800 desktop appliances
 subdevice_role: parent
 device-bays:

device-types/Check Point/CPAC-1500-3600-3800-RM-DUAL.yaml

@@ -6,7 +6,6 @@ part_number: C8300-1N1S-4T2X
 u_height: 1
 is_full_depth: false
 airflow: front-to-rear
-is_powered: true
 comments: '[Cisco 8000 Series Routers Data Sheet](https://www.cisco.com/c/en/us/products/collateral/routers/catalyst-8300-series-edge-platforms/datasheet-c78-744088.html)'
 weight: 9.0
 weight_unit: kg

device-types/Cisco/C8300-1N1S-4T2X.yaml

@@ -6,7 +6,6 @@ part_number: C8300-2N2S-4T2X
 u_height: 2
 is_full_depth: false
 airflow: front-to-rear
-is_powered: true
 comments: '[Cisco 8000 Series Routers Data Sheet](https://www.cisco.com/c/en/us/products/collateral/routers/catalyst-8300-series-edge-platforms/datasheet-c78-744088.html)'
 weight: 18.0
 weight_unit: kg

device-types/Cisco/C8300-2N2S-4T2X.yaml

@@ -5,7 +5,6 @@ part_number: C891-K9
 slug: cisco-c891-k9
 u_height: 1
 is_full_depth: false
-is_powered: true
 weight: 4.84
 weight_unit: kg
 airflow: passive

device-types/Cisco/C891-K9.yml

@@ -5,7 +5,6 @@ part_number: C891F-K9
 slug: cisco-c891f-k9
 u_height: 1
 is_full_depth: false
-is_powered: true
 weight: 2.5
 weight_unit: kg
 airflow: passive