Re-enable light queue toggle, optimize neighbor checks, add max queue time

light queue is actually buggy, so re-enabling the config.

however, if anyone is ok with the buggy behavior, made the max time lost due to
light queue configurable.

We want to get to making the ligth queue default if we can make it work perfectly.

also applying neighbor optimizations to use the faster method for light checks.

Spigot-Server-Patches/Optimize-explosions.patch

@@ -10,7 +10,7 @@ This patch adds a per-tick cache that is used for storing and retrieving
 an entity's exposure during an explosion.
 
 diff --git a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
-index aa2f5414b0..bd1ac77aef 100644
+index 5aee23dceb..2ec3d93551 100644
 --- a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
 +++ b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
 @@ -0,0 +0,0 @@ public class PaperWorldConfig {
@@ -25,7 +25,7 @@ index aa2f5414b0..bd1ac77aef 100644
 +    }
  }
 diff --git a/src/main/java/net/minecraft/server/Explosion.java b/src/main/java/net/minecraft/server/Explosion.java
-index 2620c4c2bd..a31e07b903 100644
+index c7d11cf621..d0ba510023 100644
 --- a/src/main/java/net/minecraft/server/Explosion.java
 +++ b/src/main/java/net/minecraft/server/Explosion.java
 @@ -0,0 +0,0 @@ public class Explosion {