feat: add 5 new SNMP vendor modules
Add vendor-specific SNMP handling for:
- Aerohive (HiveOS wireless APs): client counts, CPU/memory, temperature
- Baicells (LTE CPE): RSRP, RSRQ, SINR, RSSI, tx power, temperature
- Cambium PTP (point-to-point radios): RSL, tx power, data rates, temperature
- Cisco WAP (standalone APs): clients, channel utilization, noise floor
- Netonix (WISP switches): temperatures, fan speed, PSU voltages, PoE power
Each module implements the Vendor behaviour with:
- profile_names/0 for profile matching
- detect_hardware/1 for model identification
- discover_wireless_sensors/1 for sensor discovery
- wireless_oid_defs/0 for debug data collection
All modules registered in vendor registry with comprehensive tests.
Graham McIntire
7c2014842d