feat: add NetBox provisioning script for fabric topology
Create comprehensive script to populate NetBox with:
- Custom fields (ASN, MLAG, VRF, virtual IP)
- Organization (Site, Manufacturer, DeviceType, DeviceRole)
- Devices (2 spines, 8 leafs, 4 hosts)
- Interfaces (physical, loopbacks, LAGs, SVIs)
- Cables (spine-leaf, MLAG peer-links, host dual-homing)
- IP addresses (loopbacks, P2P links)
- VLANs and VRF with route targets
- Prefixes
Reference: arista-evpn-vxlan-clab topology
Relates to #5
Damien Arnodo
1052b2ca3d