publics/360Excelize

Autor	SHA1 Mensaxe	Data
Ri Xu	a99f0227b0 - New function `AddPicture()` added, support to add picture into excel cell;	%!s(int64=9) %!d(string=hai) anos
Ri Xu	9e0aca2223 Add custom height and zero height attributes in sheetFormatPr element.	%!s(int64=9) %!d(string=hai) anos
Ri Xu	2d0eda1aec Update readme and license file.	%!s(int64=9) %!d(string=hai) anos