Add tag support for zabbix_host_events_info module

[aplathrop]

SUMMARY

Adds support to the zabbix_host_events_info module to filter events by tag. It also adds the tags returned by last_event

As there were no unit tests for the zabbix_host_events_info module, this also adds unit tests for it, both with and without tags

ISSUE TYPE

• Feature Pull Request

COMPONENT NAME

• zabbix_host_events_info

ADDITIONAL INFORMATION

Being able to filter events by tag is supported by the Zabbix API, but not the current zabbix_host_events_info module, so I've added support for it. An example of this can be seen below:

- community.zabbix.zabbix_host_events_info:
    host_identifier: ExampleHost
    host_id_type: hostname
    trigger_severity: warning
    tags:
      - tag: ExampleTag
        value: ExampleValue
        operator: equal

I believe it would also be useful to do the inverse, get a list of events for a host and then be able to do something based on the tags the events return:

- community.zabbix.zabbix_host_events_info:
    host_identifier: ExampleHost
    host_id_type: hostname
    trigger_severity: warning

- ansible.builtin.debug:
    msg: "{{ zabbix_host_events_tags.triggers_problem[0].last_event.tags }}"

[pyrodie18]

Nice work! Thank you for the addition