1.18 misc performance dev branch (#7368)

- Port player chunk loader patch
Makes the chunk system act as it did in 1.17, no additional tickets (and thus logic) to make a chunk ticking.
Adds simulation distance API, deprecates old no-tick method.
- More collision optimisations
Ancient patch from tuinity that never could be pushed to master.
- Fix Optimise ArraySetSorted#removeIf patch
- Execute chunk tasks fairly for worlds while waiting for next tick
- Port Replace ticket level propagator

patches/server/Consolidate-flush-calls-for-entity-tracker-packets.patch

@@ -26,9 +26,9 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 --- a/src/main/java/net/minecraft/server/level/ServerChunkCache.java
 +++ b/src/main/java/net/minecraft/server/level/ServerChunkCache.java
 @@ -0,0 +0,0 @@ public class ServerChunkCache extends ChunkSource {
- 
-             //  Paper - no, iterating just ONCE is expensive enough! Don't do it TWICE! Code moved up
+             this.level.timings.broadcastChunkUpdates.stopTiming(); // Paper - timing
              gameprofilerfiller.pop();
+             // Paper end - use set of chunks requiring updates, rather than iterating every single one loaded
 +            // Paper start - controlled flush for entity tracker packets
 +            List<net.minecraft.network.Connection> disabledFlushes = new java.util.ArrayList<>(this.level.players.size());
 +            for (ServerPlayer player : this.level.players) {