[issue 135] enhanced search

implement enhanced search for chat messages

Plugins/Web/StatsWeb/Dtos/ChatSearchQuery.cs

@@ -0,0 +1,33 @@
+using SharedLibraryCore.Dtos;
+using System;
+
+namespace StatsWeb.Dtos
+{
+    public class ChatSearchQuery : PaginationInfo
+    {
+        /// <summary>
+        /// specifies the partial content of the message to search for
+        /// </summary>
+        public string MessageContains { get; set; }
+
+        /// <summary>
+        /// identifier for the server
+        /// </summary>
+        public string ServerId { get; set; }
+
+        /// <summary>
+        /// identifier for the client
+        /// </summary>
+        public int? ClientId { get; set; }
+
+        /// <summary>
+        /// only look for messages sent after this date
+        /// </summary>
+        public DateTime SentAfter { get; set; } = DateTime.UtcNow.AddYears(-100);
+
+        /// <summary>
+        /// only look for messages sent before this date0
+        /// </summary>
+        public DateTime SentBefore { get; set; } = DateTime.UtcNow;
+    }
+}