Add support for int64 and bfloat16 types, improve tensor conversion s…#91

gongchensu wants to merge 1 commit intoInfiniTensor:mainInfiniTensor/InfiniLM:mainfrom

gongchensu:feature/support_iluvatargongchensu/InfiniLM:feature/support_iluvatarCopy head branch name to clipboard