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##### SUMMARY
The vmware_cluster_ha module should support advanced configuration parameters in a generic way. 

##### ISSUE TYPE
- Feature Idea

##### COMPONENT NAME
vmware_cluster_ha

##### ADDITIONAL INFORMATION
The feature would allow advanced configurations like isolation address handling.

<!--- Paste example playbooks or commands between quotes below -->
```yaml
name: Enable HA with multiple custom isolation addresses for stretched vSAN
  vmware_cluster_ha:
    hostname: '{{ vcenter_hostname }}'
    username: '{{ vcenter_username }}'
    password: '{{ vcenter_password }}'
    datacenter_name: datacenter
    cluster_name: cluster
    enable_ha: yes
    configuration_parameters:
      das.usedefaultisolationaddress: false
      das.isolationaddress0: '{{ primary_isolation_address }}'
      das.isolationaddress1: '{{ secondary_isolation_address }}'
  delegate_to: localhost
```

<!--- HINT: You can also paste gist.github.com links for larger files -->

def __init__(self, module):
        """
        Constructor
        """
        if not HAS_REQUESTS:
            module.fail_json(msg=missing_required_lib('requests'),
                             exception=REQUESTS_IMP_ERR)
        if not HAS_PYVMOMI:
            module.fail_json(msg=missing_required_lib('PyVmomi'),
                             exception=PYVMOMI_IMP_ERR)
        self.module = module
        self.params = module.params
        self.current_vm_obj = None
        self.si, self.content = connect_to_api(self.module, return_si=True)
        self.custom_field_mgr = []
        if self.content.customFieldsManager:  
            self.custom_field_mgr = self.content.customFieldsManager.field
    def is_vcenter(self):