##### SUMMARY
Move some helper functions from `vmware_host_config_manager` to `PyVmomi`.

##### ISSUE TYPE
- Feature Idea

##### COMPONENT NAME
vmware_host_config_manager
vmware

##### ADDITIONAL INFORMATION
`vmware_host_config_manager` has some helper functions (`is_integer`, `is_boolean` and `is_truthy`) to deal with vSphere Web Services API `OptionValue`s. Today, I started to work on issue #61421 and I think these helper functions could be useful there, too. Actually, there are several Managed Object Types with an `OptionValue[]` parameter. Instead of duplicating the code, I think it would be better to move these helper functions to `PyVmomi` in `module_utils/vmware.py`.
dc = find_datacenter_by_name(content, datacenter_name)
    if dc is None:
        module.fail_json(msg="Unable to find datacenter with name %s" % datacenter_name)
    cluster = find_cluster_by_name(content, cluster_name, datacenter=dc)
    if cluster is None:
        module.fail_json(msg="Unable to find cluster with name %s" % cluster_name)
    for host in cluster.host:
        if host.name == host_name:
            return host, cluster
    return None, cluster
def set_vm_power_state(content, vm, state, force, timeout=0):
    """
    Set the power status for a VM determined by the current and
    requested states. force is forceful
    """
    facts = gather_vm_facts(content, vm)
    expected_state = state.replace('_', '').replace('-', '').lower()
    current_state = facts['hw_power_status'].lower()
    result = dict(
        changed=False,
        failed=False,
    )