[Issue 1044] add method for MultiCriterion and ParallelCriterion (#1047)
[Issue 1044] add method for MultiCriterion and ParallelCriterion (#1047)

* add method for MultiCriterion and ParallelCriterion

* fix parallelCriterion

intel-analytics/BigDL,yangw1234/BigDL,intel-analytics/BigDL,yangw1234/BigDL,yangw1234/BigDL,intel-analytics/BigDL,yangw1234/BigDL,intel-analytics/BigDL