It’s all starting to come together. With a back-to-back to work with for their second and third preseason games, the Flyers had a chance to get more of their veterans and NHL regulars into the mix and really start getting some looks at prospective lines heading into the season. And with the injuries that have already hit the forward group, there are certainly a number of open questions remaining about how that lineup will shake out. But that said, while there’s still ample time left for tinkering over the next three games, the Flyers are starting to [tip their cards]…