说明：  解析ENVI的HDR头文件模块 很早之前程序里面用到的一个模块，功能不太完善,需要解析其他信息的在里面添加即可,没有添加错误判断，认为有必要的也自己添加下
(HDR header file module for parsing of ENVI program which long ago used a module, function is not perfect, need to resolve other information can be added on the inside, did not add the wrong judgment that is necessary to also add their own)