OPENDJ-1566 (CR-4587) Migrate core code from FutureResult to Promise

Minor changes in the opendj3 core server are:

* ConfigurationHandler.java
** As the SearchResultHandler, ConfigSearchResultHandler does not implements ResultHandler anymore.

* CollectClientConnectionsFilter.java
** Remove the DoBindResultHandler and use Promise chaining to complete the doFilter() method

* HttpClientConnection.java
** Change the OperationWithFutureResult class to use a FutureResultImpl instead of old AsynchronousFutureResult implementation.
** Add a SearchOperationWithFutureResultClass to handle a reference on the SearchResultHandler of the search operation.
** Create a new appSearchOperationInProgress method to handle the special case of a search operation.

* SdkConnectionAdapter.java
** Ensure compatibility with the new AbstractAsynchronousConnection class by removing ResultHandler parameter from all xxxAsync methods.