Plots updated for 2019

I think I successfully did a “Find and replace” for 2018 to 2019 and the various plotting apps/charts here will now compare 2019 stats to 2017. That was easy, comparing to both 2018 and 2017 wolud be harder. We’ll see if I can get around to that someday. Anyway, none of the charts are particularly interesting 5 games into the season - though it’s safe to say our pitching is still pretty good.