##### SUMMARY
[`zabbix_host`](https://docs.ansible.com/ansible/latest/modules/zabbix_host_module.html) module currently does not support specifying usermacros.

While usermacros can be added separately with [`zabbix_hostmacro`](https://docs.ansible.com/ansible/latest/modules/zabbix_hostmacro_module.html) module, that splits up the configuration and makes it very hard to maintain.

It would be great to specify macros in the host definition of `zabbix_host`.

##### ISSUE TYPE
- Feature Idea

##### COMPONENT NAME
zabbix_host
ipmi_authtype:
        description:
            - IPMI authentication algorithm.
            - Please review the Host object documentation for more information on the supported properties
            - 'https://www.zabbix.com/documentation/3.4/manual/api/reference/host/object'
            - Possible values are, C(0) (none), C(1) (MD2), C(2) (MD5), C(4) (straight), C(5) (OEM), C(6) (RMCP+),
              with -1 being the API default.
            - Please note that the Zabbix API will treat absent settings as default when updating
              any of the I(ipmi_)-options; this means that if you attempt to set any of the four
              options individually, the rest will be reset to default values.
        version_added: '2.5'
        type: int
    ipmi_privilege:
        description:
            - IPMI privilege level.
            - Please review the Host object documentation for more information on the supported properties
            - 'https://www.zabbix.com/documentation/3.4/manual/api/reference/host/object'
            - Possible values are C(1) (callback), C(2) (user), C(3) (operator), C(4) (admin), C(5) (OEM), with C(2)
              being the API default.
            - also see the last note in the I(ipmi_authtype) documentation
        version_added: '2.5'
        type: int
    ipmi_username:
        description:
            - IPMI username.
            - also see the last note in the I(ipmi_authtype) documentation
        version_added: '2.5'
        type: str
    ipmi_password:
        description: