Operations pipeline start

WotBlitzStatisticsPro.Logic/Pipeline/IPipeline.cs

@@ -0,0 +1,21 @@
+namespace WotBlitzStatisticsPro.Logic.Pipeline
+{
+    /// <summary>
+    /// Represents operation pipeline
+    /// </summary>
+    public interface IPipeline<TContext>
+    {
+        /// <summary>
+        /// Builds the pipeline.
+        /// </summary>
+        /// <returns>First operation in pipeline.</returns>
+        IOperation<TContext> Build();
+
+        /// <summary>
+        /// Adds operation type to the pipeline
+        /// </summary>
+        /// <typeparam name="TOperation">Operation type</typeparam>
+        /// <returns>Pipeline instance</returns>
+        IPipeline<TContext> AddOperation<TOperation>() where TOperation : IOperation<TContext>;
+    }
+}