Arrange code structure. Introduce dynamic scheduler and multi leader.

StgSharp.Device/IDataDecoder.cs

@@ -0,0 +1,29 @@
+namespace EM.LowLevel
+{
+    /// <summary>
+    ///   Decodes device-specific binary responses into C#-friendly models.
+    /// </summary>
+    public interface IDataDecoder
+    {
+
+        /// <summary>
+        ///   Decode a response of a known type into a model.
+        /// </summary>
+        /// <typeparam name="TModel">
+        ///   Target model type
+        /// </typeparam>
+        /// <param name="payload">
+        ///   Raw or deframed payload depending on transport contract
+        /// </param>
+        /// <returns>
+        ///   Decoded model
+        /// </returns>
+        TModel Decode<TModel>(ReadOnlySpan<byte> payload);
+
+        /// <summary>
+        ///   Try-decode variant to avoid throwing on partial/bad frames.
+        /// </summary>
+        bool TryDecode<TModel>(ReadOnlySpan<byte> payload, out TModel model);
+
+    }
+}