Schema doc: https://github.com/glpi-project/inventory_format
Can be overrided from a plugin to inventory its own types.

Based on inventory features provided from fusioninventoryplugin, and
compatible with

New uUpgraded equipement rules to handle several itemtypes, add reset capacity
Handle Phones inventories
Add entites rules

Locks management for fields and its tests:
- Fields that have been updated from GLPI must not be modified from
inventory, and inventory does not lock anything.
- An icon is displayed in main item form only, even if all item types
can be locked. Displaying on all forms would require to change each
form individually (very huge work to copy a few lines of code).
- All item types can be locked

Overridable USB and PCI vendors list

Network inventory

Support for network equipments, stacked, wireless, VLANS,
LLDP/CDP and MAC connections, hubs

Add some missing fields in network tables

Use withHistory and fix usages
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