Added some meraki elevation images (#1972)

* Added Meraki Elevataion Images

* modfied: add front images-removed images w/o model

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

device-types/Cisco/Meraki-MS220-24P.yaml

@@ -6,6 +6,7 @@ part_number: MS220-24P-HW
 u_height: 1
 is_full_depth: false
 comments: '[MS220 Overview and Specifications](https://meraki.cisco.com/lib/pdf/meraki_datasheet_ms_220_320_only.pdf)'
+front_image: true
 power-ports:
   - name: Slot 1
     type: iec-60320-c14

device-types/Cisco/Meraki-MS220-48FP.yaml

@@ -6,6 +6,7 @@ part_number: MS220-48FP-HW
 u_height: 1
 is_full_depth: false
 comments: '[MS220 Overview and Specifications](https://meraki.cisco.com/lib/pdf/meraki_datasheet_ms_220_320_only.pdf)'
+front_image: true
 power-ports:
   - name: Slot 1
     type: iec-60320-c14

device-types/Cisco/Meraki-MS350-24P.yaml

@@ -4,6 +4,7 @@ model: Meraki MS350-24P
 slug: cisco-meraki-ms350-24p
 part_number: MS350-24P-HW
 u_height: 1
+front_image: true
 power-ports:
   - name: Slot 1
     type: iec-60320-c14

device-types/Cisco/Meraki-MX100.yaml

@@ -6,6 +6,7 @@ part_number: MX100
 u_height: 1
 is_full_depth: false
 comments: Meraki MX100
+front_image: true
 power-ports:
   - name: Slot 1
     type: iec-60320-c14