Update version to 0.2.1, add player color retrieval, and enhance train trip statistics

Performance improvments for power stats

game-stats.lua

@@ -8,6 +8,17 @@ function GetMods()
   helpers.send_udp(udpAddress, modstring,serverIndex)
 end
 
+function GetPlayerColors()
+  local colorParts = {}
+  colorParts[#colorParts+1] = "---player-colors---\n"
+  for index, player in pairs(game.players) do
+    local colorSettings = player.color
+    colorParts[#colorParts+1] = ("%d:%s:%d:%d:%d:%d"):format(index,player.name,colorSettings.r,colorSettings.g,colorSettings.b,colorSettings.a)
+  end
+  return table.concat(colorParts,"\n")
+end
+
+
 function GetPlayerKills()
   local killParts = {}
   killParts[#killParts+1] = "---player-kills---\n"