Move SimpleID to router, add a used/free set to avoid ever-growing BitSets.
add flag checks to all users of getIRoutersByCost that need them
modify CreateRouteTable to what's effectively djikstra with 3 closed sets
remove 10km iron pipe hack
fix ISCs not passing power locally
Fix satellites not working
Exits that can't route items are unrouted
Adjacent changes directly trigger neighbors
Complain when things call getRouter() early
Try to stop ISC from accessing its router prematurely
Don't call super.updateEntity() on pipes that are waiting to be replaced.
We don't care about neighbor changes if we're going to get replaced anyways