SPIGOT-3729: Add AreaEffectClouds to tracker

nms-patches/EntityTracker.patch

@@ -1,5 +1,14 @@
 --- a/net/minecraft/server/EntityTracker.java
 +++ b/net/minecraft/server/EntityTracker.java
+@@ -91,7 +91,7 @@
+         } else if (entity instanceof EntityExperienceOrb) {
+             this.addEntity(entity, 160, 20, true);
+         } else if (entity instanceof EntityAreaEffectCloud) {
+-            this.addEntity(entity, 160, Integer.MAX_VALUE, true);
++            this.addEntity(entity, 160, 10, true); // CraftBukkit
+         } else if (entity instanceof EntityEnderCrystal) {
+             this.addEntity(entity, 256, Integer.MAX_VALUE, false);
+         } else if (entity instanceof EntityEvokerFangs) {
 @@ -120,11 +120,12 @@
              CrashReportSystemDetails crashreportsystemdetails = crashreport.a("Entity To Track");