some examples in dllib cannot pass

[dding3]

python example status:

scala example status:

For detailed information, please refer https://github.com/intel-analytics/analytics-zoo/pull/4501 https://github.com/intel-analytics/analytics-zoo/pull/4461

Shall we update the example readme and fix the running issue.

[Le-Zheng]

• Caffe UT test failed: error: http://10.112.231.51:18080/job/BigDL-PRVN-caffe/1250/console
• Lenet python example failed:

Run ${submit} --master local[*] --conf "spark.serializer=org.apache.spark.serializer.JavaSerializer" --driver-memory 10g --executor-cores 14 --total-executor-cores 28 --py-files ${curdir}/dist/lib/bigdl-dllib-*-python-api.zip --jars ${jar_path} --properties-file ${curdir}/dist/conf/spark-bigdl.conf ${curdir}/python/dllib/src/bigdl/dllib/models/lenet/lenet5.py -b 224 --action train --endTriggerType epoch --endTriggerNum 1 error: Traceback (most recent call last): File "/opt/work/jenkins/workspace/BigDL-Integration-Examples-5/python/dllib/src/bigdl/dllib/models/lenet/lenet5.py", line 18, in <module> from bigdl.dllib.models.lenet.utils import * File "/opt/work/jenkins/workspace/BigDL-Integration-Examples-5/dist/lib/bigdl-dllib-0.14.0-SNAPSHOT-python-api.zip/bigdl/dllib/models/lenet/utils.py", line 17, in <module> from bigdl.dllib.feature.dataset import mnist ImportError: No module named feature.dataset