Add GameService

Signed-off-by: Graham <gpe@openrs2.org>

game/src/main/kotlin/org/openrs2/game/GameModule.kt

@@ -23,6 +23,7 @@ public object GameModule : AbstractModule() {
         install(NetworkModule)
 
         val binder = Multibinder.newSetBinder(binder(), Service::class.java)
+        binder.addBinding().to(GameService::class.java)
         binder.addBinding().to(Js5Service::class.java)
         binder.addBinding().to(NetworkService::class.java)
 

game/src/main/kotlin/org/openrs2/game/GameService.kt

@@ -0,0 +1,16 @@
+package org.openrs2.game
+
+import com.google.common.util.concurrent.AbstractScheduledService
+import java.util.concurrent.TimeUnit
+import javax.inject.Singleton
+
+@Singleton
+public class GameService : AbstractScheduledService() {
+    override fun runOneIteration() {
+        // TODO(gpe): implement
+    }
+
+    override fun scheduler(): Scheduler {
+        return Scheduler.newFixedRateSchedule(0, 600, TimeUnit.MILLISECONDS)
+    }
+}