Fix a number of property wsdl_types (#176)
Fix a number of property wsdl_types (#176)

A few properties have a wsdl_type that doesn't match the vim25 wsdl
declaration.  This leads to issues with deserialization because for
example when an attribute should be a string it is a more complex type
like HostPortGroup but doesn't have any actual information in it.
vmware/rbvmomi,10xEngineer/rbvmomi,10xEngineer/rbvmomi