public ExifWriter(Collection<ExifValue> values, ExifParts allowedParts)
{
_Values = values;
_AllowedParts = allowedParts;
_IfdIndexes = GetIndexes(ExifParts.IfdTags, _IfdTags);
_ExifIndexes = GetIndexes(ExifParts.ExifTags, _ExifTags);
_GPSIndexes = GetIndexes(ExifParts.GPSTags, _GPSTags);
}