[ci skip] (Mostly) finish adding identifying patch comments

patches/server/Cap-Entity-Collisions.patch

@@ -16,13 +16,13 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 --- a/src/main/java/net/minecraft/world/entity/Entity.java
 +++ b/src/main/java/net/minecraft/world/entity/Entity.java
 @@ -0,0 +0,0 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource, S
+     public long activatedTick = Integer.MIN_VALUE;
      public void inactiveTick() { }
      // Spigot end
-     // Paper start
 +    protected int numCollisions = 0; // Paper - Cap entity collisions
+     // Paper start - Entity origin API
      @javax.annotation.Nullable
      private org.bukkit.util.Vector origin;
-     @javax.annotation.Nullable
 diff --git a/src/main/java/net/minecraft/world/entity/LivingEntity.java b/src/main/java/net/minecraft/world/entity/LivingEntity.java
 index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
 --- a/src/main/java/net/minecraft/world/entity/LivingEntity.java