public Picture(int id, Location location, string picPath, List<Tag> tags)
{
this.id = id;
this.location = location;
this.picPath = picPath;
this.tags = tags;
}
public Picture(int id, Location location, string picPath)
{
this.id = id;
this.location = location;
this.picPath = picPath;
this.tags = new List<Tag>();
}