removed unnecessary class Light10B, minor fixes for LightmapRenderer

Former-commit-id: 4cddfb080cc689738d9bf308f7d08852f4c78a8b
Former-commit-id: 2354b2483f30e70862a327c1b9688a19bd1b2f66

src/net/torvald/terrarum/gameactors/Projectile.kt

@@ -0,0 +1,9 @@
+package net.torvald.terrarum.gameactors
+
+/**
+ * Projectile marker. Used to kill them when they're far away from the player, instead of making them sleep.
+ *
+ * Created by minjaesong on 16-09-05.
+ */
+interface Projectile {
+}