add missing copyright notice to curve types

src/ImageSharp/MetaData/Profiles/ICC/Curves/IccCurveSegment.cs

@@ -1,4 +1,9 @@
-namespace ImageSharp
+// <copyright file="IccDataWriter.cs" company="James Jackson-South">
+// Copyright (c) James Jackson-South and contributors.
+// Licensed under the Apache License, Version 2.0.
+// </copyright>
+
+namespace ImageSharp
 {
     using System;
 

src/ImageSharp/MetaData/Profiles/ICC/Curves/IccFormulaCurveElement.cs

@@ -1,4 +1,9 @@
-namespace ImageSharp
+// <copyright file="IccDataWriter.cs" company="James Jackson-South">
+// Copyright (c) James Jackson-South and contributors.
+// Licensed under the Apache License, Version 2.0.
+// </copyright>
+
+namespace ImageSharp
 {
     /// <summary>
     /// A formula based curve segment

src/ImageSharp/MetaData/Profiles/ICC/Curves/IccOneDimensionalCurve.cs

@@ -1,4 +1,9 @@
-namespace ImageSharp
+// <copyright file="IccDataWriter.cs" company="James Jackson-South">
+// Copyright (c) James Jackson-South and contributors.
+// Licensed under the Apache License, Version 2.0.
+// </copyright>
+
+namespace ImageSharp
 {
     using System;
     using System.Linq;

src/ImageSharp/MetaData/Profiles/ICC/Curves/IccParametricCurve.cs

@@ -1,4 +1,9 @@
-namespace ImageSharp
+// <copyright file="IccDataWriter.cs" company="James Jackson-South">
+// Copyright (c) James Jackson-South and contributors.
+// Licensed under the Apache License, Version 2.0.
+// </copyright>
+
+namespace ImageSharp
 {
     using System;
 

src/ImageSharp/MetaData/Profiles/ICC/Curves/IccResponseCurve.cs

@@ -1,4 +1,9 @@
-namespace ImageSharp
+// <copyright file="IccDataWriter.cs" company="James Jackson-South">
+// Copyright (c) James Jackson-South and contributors.
+// Licensed under the Apache License, Version 2.0.
+// </copyright>
+
+namespace ImageSharp
 {
     using System;
     using System.Linq;

src/ImageSharp/MetaData/Profiles/ICC/Curves/IccSampledCurveElement.cs

@@ -1,4 +1,9 @@
-namespace ImageSharp
+// <copyright file="IccDataWriter.cs" company="James Jackson-South">
+// Copyright (c) James Jackson-South and contributors.
+// Licensed under the Apache License, Version 2.0.
+// </copyright>
+
+namespace ImageSharp
 {
     using System.Linq;