[issue 135] enhanced search

implement enhanced search for chat messages

SharedLibraryCore/Helpers/ResourceQueryHelperResult.cs

@@ -0,0 +1,26 @@
+using System.Collections.Generic;
+
+namespace SharedLibraryCore.Helpers
+{
+    /// <summary>
+    /// generic class for passing information about a resource query
+    /// </summary>
+    /// <typeparam name="QueryResultType">Type of query result</typeparam>
+    public class ResourceQueryHelperResult<QueryResultType>
+    {
+        /// <summary>
+        /// indicates the total number of results found
+        /// </summary>
+        public long TotalResultCount { get; set; }
+
+        /// <summary>
+        /// indicates the total number of results retrieved
+        /// </summary>
+        public int RetrievedResultCount { get; set; }
+
+        /// <summary>
+        /// collection of results
+        /// </summary>
+        public IEnumerable<QueryResultType> Results { get; set; }
+    }
+}