Added some SetLastError()s to get correct error codes in Win32.
Added some SetLastError()s to get correct error codes in Win32.

davispuh/taglib,black78/taglib,MaxLeb/taglib,davispuh/taglib,TsudaKageyu/taglib,Distrotech/taglib,pbhd/taglib,videolabs/taglib,pbhd/taglib,TsudaKageyu/taglib,i80and/taglib,MaxLeb/taglib,dlz1123/taglib,black78/taglib,i80and/taglib,i80and/taglib,MaxLeb/taglib,taglib/taglib,taglib/taglib,taglib/taglib,Distrotech/taglib,black78/taglib,Distrotech/taglib,dlz1123/taglib,videolabs/taglib,TsudaKageyu/taglib,videolabs/taglib,pbhd/taglib,dlz1123/taglib,davispuh/taglib