Tags were basically only used for IOCs.
Tags were linked to the interface (and not the host).
But for IOC we assume it should always be the main (first) interface.

Using a field on the host table will make it more obvious for users.

Created a IOC dynamic group type, to create a group including all IOCs

JIRA INFRA-862 #action In Progress

https://black.readthedocs.io/en/stable/

"gateway" tag removed. It could be re-added if needed to overwrite the
default computed gateway for example.

JIRA INFRA-339

Tags and device_types are used as key in Ansible roles.
They shouldn't contain any spaces to avoid issues.

JIRA INFRA-334

- rename physical to physical machine
- IOC should be a tag

JIRA INFRA-302

- rename "Virtual" to "Virtual Machine"
- add "Virtual IOC"
- add several physical devices (Switch, Industrial PC IOC, MicroTCA,
  VME, PLC)

gateway tag shall be admin_only

Only keep the values really required by the application.

- We don't care about the id of the models. No need to force it.
- Rename actions