Create an empty Customer with default policies

To use this function when you are integration just the Location SDK
* Create empty customer with default policies.
* @param onSuccess - invoked if customer was created successfully
* @param onError - invoked if exception occurred
public Future<CustomerCreateResponse> setupCustomer(Callback<CustomerCreateResponse> onSuccess, Callback<MobileSDKException> onError)
Calling this function It is equivalent to a make a login. The success of this function opens a session with the customer returned. To close the session use logout() method.