This study was partially supported by the National Key Research and Development Plan of China under Grant No. 2016YFB0200405 , the National Natural Science Foundation of China with Grant Nos. 61672217 , 61370097 , 61602164 , and 61702172 , and the Natural Science Foundation of Hunan Province, China under Grant 2018JJ2063 and 2018JJ3076 .