Add XML documentation to Ryujinx.Graphics.Gpu.Shader

Ryujinx.Graphics.Gpu/Shader/GraphicsShader.cs

@@ -2,12 +2,24 @@ using Ryujinx.Graphics.GAL;
 
 namespace Ryujinx.Graphics.Gpu.Shader
 {
+    /// <summary>
+    /// Cached graphics shader code for all stages.
+    /// </summary>
     class GraphicsShader
     {
+        /// <summary>
+        /// Host shader program object.
+        /// </summary>
         public IProgram HostProgram { get; set; }
 
+        /// <summary>
+        /// Compiled shader for each shader stage.
+        /// </summary>
         public CachedShader[] Shader { get; }
 
+        /// <summary>
+        /// Creates a new instance of cached graphics shader.
+        /// </summary>
         public GraphicsShader()
         {
             Shader = new CachedShader[5];