Support for vr-aoscx

[ssasso]

Support for ArubaOS-CX using vrnetlab, after hellt/vrnetlab#133

(This is my first time working with go, so forgive me if I did something wrong. It tried to copy from other vr- kinds.)

I compiled everything with make all, and got everyting working in my env with the following topology:

name: test-aoscx

mgmt:
  ipv4-subnet: 192.168.124.0/24

topology:
  nodes:
    r1:
      mgmt-ipv4: 192.168.124.101
      kind: vr-aoscx
      image: vrnetlab/vr-aoscx:20230531220439
      runtime: docker
    r2:
      mgmt-ipv4: 192.168.124.102
      kind: vr-aoscx
      image: vrnetlab/vr-aoscx:20230531220439
      runtime: docker

  links:
  - endpoints:
    - "r1:eth1"
    - "r2:eth1"

[hellt]

All looks good @ssasso
I just added the new doc entry to the doc engine TOC.