##### SUMMARY
<!--- Describe the new feature/improvement briefly below -->
zabbix_host already has support for the inventory tag and Asset tag but the general host tags are still missing. They would be a nice addition.
##### ISSUE TYPE
- Feature Idea

##### COMPONENT NAME
<!--- Write the short name of the module, plugin, task or feature below, use your best guess if unsure -->
zabbix_host.py

##### ADDITIONAL INFORMATION
<!--- Describe how the feature would be used, why it is needed and what it would solve -->
It would make event correlation a bit easier and I am sire many more things.
<!--- Paste example playbooks or commands between quotes below -->
```yaml
- name: Create a new host or update an existing host's info
  local_action:
    module: zabbix_host
    server_url: "{{zabbix_server.url}}"
    login_user: "{{zabbix_server.username}}"
    login_password: "{{zabbix_server['password']}}"
    host_name: "{{item.name}}"
    host_groups: "{{item.groups | default(omit)}}"
    link_templates: "{{item.templates | default(omit)}}"
    tags: "{{item.tags}}"
    state: "{{item.state}}"
    status: "{{item.status}}"
    inventory_mode: automatic
    inventory_zabbix:
      asset_tag: "{{item.CI}}"
      alias: "{{item.HOST}}"
    interfaces:
      - type: 1
        main: 1
        useip: 1
        ip: 127.0.0.1
        dns: ""
        port: 10050
  with_items:
```

tags would need to be a list of name value pairs.
<!--- HINT: You can also paste gist.github.com links for larger files -->

description:
                    - Port used by host interface.
                    - If not specified, default port for each type of interface is used
                    - 10050 if I(type='agent')
                    - 161 if I(type='snmp')
                    - 623 if I(type='ipmi')
                    - 12345 if I(type='jmx')
            bulk:
                type: int
                description:
                    - Whether to use bulk SNMP requests.
                    - 0 (don't use bulk requests), 1 (use bulk requests)
                choices: [0, 1]
                default: 1
        default: []
    tls_connect:
        description:
            - Specifies what encryption to use for outgoing connections.
            - Possible values, 1 (no encryption), 2 (PSK), 4 (certificate).
            - Works only with >= Zabbix 3.0
        default: 1
        version_added: '2.5'
        type: int
    tls_accept:
        description:
            - Specifies what types of connections are allowed for incoming connections.
            - The tls_accept parameter accepts values of 1 to 7
            - Possible values, 1 (no encryption), 2 (PSK), 4 (certificate).
            - Values can be combined.
            - Works only with >= Zabbix 3.0