Hid public constructors for pooled writer and reader

Author: TwoTenPvP

MLAPI/NetworkingManagerComponents/Binary/ResourcePool.cs

@@ -182,7 +182,7 @@ public sealed class PooledBitWriter : BitWriter, IDisposable
     {
         private bool isDisposed = false;
 
-        public PooledBitWriter(Stream stream) : base(stream)
+        internal PooledBitWriter(Stream stream) : base(stream)
         {
 
         }
@@ -218,7 +218,7 @@ public sealed class PooledBitReader : BitReader, IDisposable
     {
         private bool isDisposed = false;
 
-        public PooledBitReader(Stream stream) : base(stream)
+        internal PooledBitReader(Stream stream) : base(stream)
         {
         }