fastNLP修改路径

text encoding conversion:

 iconv -f GBK -t UTF-8 phone_ghy_2800_3100.anns >a

./fastNLP/io/loader/conll.py:546:        data_dir = '/home/chencheng/data/fastNLPdata/dataset/intent_seq_lbl0'
./fastNLP/io/file_utils.py:240:    fastnlp_cache_dir = '/home/chencheng/data/fastNLPdata'#os.path.expanduser(os.path.join("~", ".fastNLP"))

fastNLP/io/loader/conll.py CNNERLoader 默认补充'O'修改，实际上不太合适，用户打空格的时候一般都是逗号的意思。