[Bleeding] Call a LAVA BlockIgniteEvent in another place in BlockStationary. Fixes BUKKIT-970

Also adds CraftEventFactory.callEvent(Event), which returns the event called. Currently only used for n.m.s.BlockStationary's lava
BlockIgniteEvent calls.

By: zml2008 <zach@zachsthings.com>

paper-server/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java

@@ -47,6 +47,7 @@ import org.bukkit.entity.PigZombie;
 import org.bukkit.entity.Player;
 import org.bukkit.entity.Projectile;
 import org.bukkit.entity.ThrownPotion;
+import org.bukkit.event.Event;
 import org.bukkit.event.block.*;
 import org.bukkit.event.entity.*;
 import org.bukkit.event.entity.CreatureSpawnEvent.SpawnReason;
@@ -72,6 +73,11 @@ public class CraftEventFactory {
         return distanceFromSpawn > spawnSize;
     }
 
+    public static <T extends Event> T callEvent(T event) {
+        Bukkit.getServer().getPluginManager().callEvent(event);
+        return event;
+    }
+
     /**
      * Block place methods
      */