Deprecate calls to MPEG::File::save(...) that use boolean params

Deprecate calls to MPEG::File::save(...) that use boolean params

This uses explicit enums for e.g. the ID3v2 version, making calls more
readable:

  file.save(ID3v1 | ID3v2, StripOthers, ID3v2::v4, Duplicate);

Instead of:

  file.save(ID3v1 | ID3v2, true, 4, true);

Needs to be ported to other types, per #922