Add support for hostid parameter to zabbix_valuemap

[osten33]

SUMMARY

Add support for specifying hostid parameter to zabbix_valuemap to be able to actually map the valuemap to a host or template.

ISSUE TYPE

• Feature Idea

COMPONENT NAME

zabbix_valuemap

ADDITIONAL INFORMATION

Currently, it is not possible to specify the hostid parameter when creating a new valuemap object. If the hostid is not specified the creation of new object will fail. This might actually classify as a bug since the create option actually only works with existing objects and cannot create new.
Creating a new valuemap object with below example and error from API:

  - name: Create valuemaps
    community.zabbix.zabbix_valuemap:
      name: BGP values
   #   hostid: 10115
      mappings:
        - value: 1
          map_to: idle
        - value: 2
          map_to: connect
        - value: 3
          map_to: active
        - value: 4
          map_to: opensent
        - value: 5
          map_to: openconfirm
        - value: 6
          map_to: established
      state: present

TASK [Create valuemaps] ************************************************************************************************************************** fatal: [zabbix]: FAILED! => {"changed": false, "msg": "connection error occurred: REST API returned {'code': -32602, 'message': 'Invalid params.', 'data': 'Invalid parameter \"/1\": the parameter \"hostid\" is missing.'} when sending {\"jsonrpc\": \"2.0\", \"method\": \"valuemap.create\", \"id\": \"3d0e535e-8ca3-40e6-a98d-3c1338b27728\", \"params\": {\"name\": \"BGP values\", \"mappings\": [{\"value\": \"1\", \"newvalue\": \"idle\"}, {\"value\": \"2\", \"newvalue\": \"connect\"}, {\"value\": \"3\", \"newvalue\": \"active\"}, {\"value\": \"4\", \"newvalue\": \"opensent\"}, {\"value\": \"5\", \"newvalue\": \"openconfirm\"}, {\"value\": \"6\", \"newvalue\": \"established\"}]}, \"auth\": \"<omittedtoken>\"}"}

Trying to add hostid in playbook fails as expected:
TASK [Create valuemaps] ************************************************************************************************************************** fatal: [zabbix]: FAILED! => {"changed": false, "msg": "Unsupported parameters for (community.zabbix.zabbix_valuemap) module: hostid. Supported parameters include: http_login_password, http_login_user, mappings, name, state."}

https://www.zabbix.com/documentation/current/en/manual/api/reference/valuemap/create

[BGmot]

I have a strong feeling that this module does not work at all. It's impossible to create a Value map not attached to either a host or a template.