Separate some tests for MP4::File::hasMP4Tag().
Separate some tests for MP4::File::hasMP4Tag().

TsudaKageyu/taglib,taglib/taglib,black78/taglib,Distrotech/taglib,TsudaKageyu/taglib,TsudaKageyu/taglib,Distrotech/taglib,black78/taglib,taglib/taglib,taglib/taglib,Distrotech/taglib,black78/taglib