Optimize Light Engine

Massive update to light to improve performance and chunk loading/generation.

1) Massive bit packing/unpacking optimizations and inlining.
  A lot of performance has to do with constant packing and unpacking of bits.
  We now inline a most bit operations, and re-use base x/y/z bits in many places.
  This helps with cpu level processing to just do all the math at once instead
  of having to jump in and out of function calls.

  This much logic also is likely over the JVM Inline limit for JIT too.
2) Applied a few of JellySquid's Phosphor mod optimizations such as
  - ensuring we don't notify neighbor chunks when neighbor chunk doesn't need to be notified
  - reduce hasLight checks in initializing light, and prob some more, they are tagged JellySquid where phosphor influence was used.
3) Optimize hot path accesses to getting updating chunk to have less branching
4) Optimize getBlock accesses to have less branching, and less unpacking
5) Have a separate urgent bucket for chunk light tasks. These tasks will always cut in line over non blocking light tasks.
6) Retain chunk priority while light tasks are enqueued. So if a task comes in at high priority but the queue is full
   of tasks already at a lower priority, before the task was simply added to the end. Now it can cut in line to the front.
   this applies for both urgent and non urgent tasks.
7) Buffer non urgent tasks even if queueUpdate is called multiple times to improve efficiency.
8) Fix NPE risk that crashes server in getting nibble data

Fixes #3489
Fixes #3363

Spigot-Server-Patches/0370-Duplicate-UUID-Resolve-Option.patch

@@ -81,10 +81,10 @@ index 4ba72275b965693f3650f9b4fb138d3320d1b88b..572679e4d1ca0d84a08a5c48542fa40d
 +    }
  }
 diff --git a/src/main/java/net/minecraft/server/Chunk.java b/src/main/java/net/minecraft/server/Chunk.java
-index 5453eaae5b165a76b55a085d70081159b8e66770..4f05468590e30f4b11599d3841418c76519255e4 100644
+index c84d90a9a0c67b5ff518ce3fbc21344c808a3cf1..962f425bbb7165740e77664dc543f976ef3d9c4a 100644
 --- a/src/main/java/net/minecraft/server/Chunk.java
 +++ b/src/main/java/net/minecraft/server/Chunk.java
-@@ -495,6 +495,7 @@ public class Chunk implements IChunkAccess {
+@@ -498,6 +498,7 @@ public class Chunk implements IChunkAccess {
          if (i != this.loc.x || j != this.loc.z) {
              Chunk.LOGGER.warn("Wrong location! ({}, {}) should be ({}, {}), {}", i, j, this.loc.x, this.loc.z, entity);
              entity.dead = true;