又一个给go用的qq-tea轮子呢（摊手
以http://bbs.chinaunix.net/thread-583468-1-1.html为基础改写过来
type teaCipher struct
NewTeaCipher([]byte) *teaCipher
(*teaCipher) Encrypt([]byte) []byte
(*teaCipher) Decrypt([]byte) []byte又一个给go用的qq-tea轮子呢（摊手
以http://bbs.chinaunix.net/thread-583468-1-1.html为基础改写过来
type teaCipher struct
NewTeaCipher([]byte) *teaCipher
(*teaCipher) Encrypt([]byte) []byte
(*teaCipher) Decrypt([]byte) []byte