Created by: wen-bo-yang
- Protostr directory added that path is "Paddle/python/paddle/trainer_config_helpers/tests/configs/protostr". The directory save protostr files that genterate with current config files.
- I modified check.md5 file and generate_protostr.sh files in order to check value of md5 between xxx.protostr and xxx.protostr.unitest and save new protostr files in protostr directory.