make stuff internal

src/ImageSharp/Memory/DiscontinuousProto/UniformMemoryGroupView{T}.cs

@@ -15,7 +15,7 @@ namespace SixLabors.ImageSharp.Memory.DiscontinuousProto
     /// instance becomes invalid, throwing an exception on all operations.
     /// </remarks>
     /// <typeparam name="T">The element type.</typeparam>
-    public class UniformMemoryGroupView<T> : IUniformMemoryGroup<T> where T : struct
+    internal class UniformMemoryGroupView<T> : IUniformMemoryGroup<T> where T : struct
     {
         private readonly UniformMemoryGroup<T> owner;
         private readonly MemoryOwnerWrapper[] memoryWrappers;

src/ImageSharp/Memory/DiscontinuousProto/UniformMemoryGroup{T}.Consumed.cs

@@ -3,7 +3,7 @@ using System.Collections.Generic;
 
 namespace SixLabors.ImageSharp.Memory.DiscontinuousProto
 {
-    public abstract partial class UniformMemoryGroup<T>
+    internal abstract partial class UniformMemoryGroup<T>
     {
         // Analogous to the "consumed" variant of MemorySource
         private class Consumed : UniformMemoryGroup<T>

src/ImageSharp/Memory/DiscontinuousProto/UniformMemoryGroup{T}.Owned.cs

@@ -6,7 +6,7 @@ using System.Linq;
 namespace SixLabors.ImageSharp.Memory.DiscontinuousProto
 {
     // Analogous to the "owned" variant of MemorySource
-    public abstract partial class UniformMemoryGroup<T>
+    internal abstract partial class UniformMemoryGroup<T>
     {
         private class Owned : UniformMemoryGroup<T>
         {

src/ImageSharp/Memory/DiscontinuousProto/UniformMemoryGroup{T}.cs

@@ -10,7 +10,7 @@ namespace SixLabors.ImageSharp.Memory.DiscontinuousProto
     /// <see cref="Image{TPixel}"/> and <see cref="ImageFrame{TPixel}"/>.
     /// </summary>
     /// <typeparam name="T">The element type.</typeparam>
-    public abstract partial class UniformMemoryGroup<T> : IUniformMemoryGroup<T>, IDisposable where T : struct
+    internal abstract partial class UniformMemoryGroup<T> : IUniformMemoryGroup<T>, IDisposable where T : struct
     {
         public abstract IEnumerator<Memory<T>> GetEnumerator();