Migrating juniper device slugs to new naming scheme (#1374)

device-types/Juniper/ACX1100-AC.yaml

 ---
 manufacturer: Juniper
 model: ACX1100-AC
-slug: acx1100-ac
+slug: juniper-acx1100-ac
 part_number: ACX1100-AC
 u_height: 1
 is_full_depth: false

device-types/Juniper/ACX4000.yaml

 ---
 manufacturer: Juniper
 model: ACX4000
-slug: acx4000
+slug: juniper-acx4000
 u_height: 3
 is_full_depth: false
 comments: 2.5U Height

device-types/Juniper/ACX5448-M.yaml

 ---
 manufacturer: Juniper
 model: ACX5448-M
-slug: acx5448-m
+slug: juniper-acx5448-m
 u_height: 1
 is_full_depth: true
 console-ports:

device-types/Juniper/ACX710-DC.yaml

 ---
 manufacturer: Juniper
 model: ACX710DC
-slug: acx710dc
+slug: juniper-acx710dc
 part_number: ACX710DC
 u_height: 1
 is_full_depth: false

device-types/Juniper/EX2200-48T-4G.yaml

 ---
 manufacturer: Juniper
 model: EX2200-48T-4G
-slug: ex2200-48t-4g
+slug: juniper-ex2200-48t-4g
 u_height: 1
 interfaces:
   - name: ge-0/0/0

device-types/Juniper/EX2200-C-12P.yaml

 ---
 manufacturer: Juniper
 model: EX2200-C-12P
-slug: ex2200-c-12p
+slug: juniper-ex2200-c-12p
 u_height: 1
 interfaces:
   - name: ge-0/0/0

device-types/Juniper/EX2200-C-12T.yaml

 ---
 manufacturer: Juniper
 model: EX2200-C-12T
-slug: ex2200-c-12t
+slug: juniper-ex2200-c-12t
 u_height: 1
 interfaces:
   - name: ge-0/0/0

device-types/Juniper/EX2300-24T.yaml

 ---
 manufacturer: Juniper
 model: EX2300-24T
-slug: ex2300-24t
+slug: juniper-ex2300-24t
 part_number: ex2300-24t
 u_height: 1
 is_full_depth: false

device-types/Juniper/EX2300-48T.yaml

 ---
 manufacturer: Juniper
 model: EX2300-48T
-slug: ex2300-48t
+slug: juniper-ex2300-48t
 part_number: ex2300-48t
 u_height: 1
 is_full_depth: false

device-types/Juniper/EX2300-C-12P.yaml

 ---
 manufacturer: Juniper
 model: EX2300-C-12P
-slug: ex2300-c-12p
+slug: juniper-ex2300-c-12p
 u_height: 1
 interfaces:
   - name: ge-0/0/0

device-types/Juniper/EX2300-C-12T.yaml

 ---
 manufacturer: Juniper
 model: EX2300-C-12T
-slug: ex2300-c-12t
+slug: juniper-ex2300-c-12t
 u_height: 1
 interfaces:
   - name: ge-0/0/0

device-types/Juniper/EX3300-24P.yaml

 ---
 manufacturer: Juniper
 model: EX3300-24P
-slug: ex3300-24p
+slug: juniper-ex3300-24p
 u_height: 1
 interfaces:
   - name: ge-0/0/0

device-types/Juniper/EX3300-24T.yaml

 ---
 manufacturer: Juniper
 model: EX3300-24T
-slug: ex3300-24t
+slug: juniper-ex3300-24t
 u_height: 1
 interfaces:
   - name: ge-0/0/0

device-types/Juniper/EX3300-48P.yaml

 ---
 manufacturer: Juniper
 model: EX3300-48P
-slug: ex3300-48p
+slug: juniper-ex3300-48p
 u_height: 1
 interfaces:
   - name: ge-0/0/0

device-types/Juniper/EX3300-48T.yaml

 ---
 manufacturer: Juniper
 model: EX3300-48T
-slug: ex3300-48t
+slug: juniper-ex3300-48t
 u_height: 1
 interfaces:
   - name: ge-0/0/0

device-types/Juniper/EX3400-24P.yaml

 ---
 manufacturer: Juniper
 model: EX3400-24P
-slug: ex3400-24p
+slug: juniper-ex3400-24p
 u_height: 1
 interfaces:
   - name: ge-0/0/0

device-types/Juniper/EX3400-24T.yaml

 ---
 manufacturer: Juniper
 model: EX3400-24T
-slug: ex3400-24t
+slug: juniper-ex3400-24t
 u_height: 1
 interfaces:
   - name: ge-0/0/0

device-types/Juniper/EX3400-48P.yaml

 ---
 manufacturer: Juniper
 model: EX3400-48P
-slug: ex3400-48p
+slug: juniper-ex3400-48p
 u_height: 1
 interfaces:
   - name: ge-0/0/0

device-types/Juniper/EX3400-48T.yaml

 ---
 manufacturer: Juniper
 model: EX3400-48T
-slug: ex3400-48t
+slug: juniper-ex3400-48t
 u_height: 1
 interfaces:
   - name: ge-0/0/0

device-types/Juniper/EX4200-48T.yaml

 ---
 manufacturer: Juniper
 model: EX4200-48T
-slug: ex4200-48t
+slug: juniper-ex4200-48t
 u_height: 1
 is_full_depth: true
 comments: '[Juniper EX4200 Data Sheet](https://www.juniper.net/assets/us/en/local/pdf/datasheets/1000215-en.pdf)'