Include macro filtering for hosts

[ozarrouki]

Summary:

Support for Query Types: Added support for querying user macro names and user macro values.
Filtering Hosts: Implemented the ability to filter hosts in Zabbix using user macro names and values.
Regex Filtering: Enhanced filtering capabilities by adding support for regular expression (regex) filtering on user macro names and values.
These changes aim to improve the flexibility and precision of host filtering in Zabbix, making it easier to manage and visualize data in Grafana.

Changes:

Added query types for user macro names and values.
Implemented filtering logic for hosts based on user macros.
Added regex support for user macro filtering in Variable settings.

Screeshots:

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