* Implicit handlers building extensions generator refactored

* Telegram.Bot package updated

dev/Telegrator.RoslynGenerators/RoslynExtensions/SyntaxTokenExtensions.cs

@@ -0,0 +1,12 @@
+using Microsoft.CodeAnalysis;
+
+namespace Telegrator.RoslynExtensions
+{
+    public static class SyntaxTokenExtensions
+    {
+        public static bool HasModifiers(this SyntaxTokenList modifiers, params string[] expected)
+        {
+            return modifiers.Count(mod => expected.Contains(mod.ToString())) == expected.Length;
+        }
+    }
+}