给用LAMBDA自定义的函数添加函数说明和参数说明

JSAREGISTER("user32.dll","CharPrevA","PP","MCLUJING","reference",1,"用户定义",undefined,undefined,"获取所选区域所属文件的路径。",'"区域。如省略，获取函数所在工作簿的路径。"');

JSAREGISTER("user32.dll","CharPrevA","PP","MCTIQUWENJIANMING","directory_text",1,"用户定义",undefined,undefined,"获取指定文件夹下指定类型文件的列表。",'"路径\\文件名.文件类型。"');