- adding Delete Options for Both sides to AutoCleanForm

- general Performance improvements
- Adding MessageReceived Event to DeviceSession, will be called before "message loop"
- AutoCleanForm optimized and clean process added to public function MessageCleanup (so you could call on your own)
- IsGroup for DeviceSession fixed to correct test
- IsChannel added to DeviceSession

Examples:
- SimpleForm (#1) derived now from AutoCleanForm to show deletion mode for both sides

TelegramBaseTest/Tests/SimpleForm.cs

@@ -8,12 +8,18 @@ using TelegramBotBase.Form;
 
 namespace TelegramBaseTest.Tests
 {
-    public class SimpleForm : FormBase
+    public class SimpleForm : AutoCleanForm
     {
 
+        public SimpleForm()
+        {
+            this.DeleteSide = eSide.Both;
+            this.DeleteMode = eDeleteMode.OnLeavingForm;
+        }
+
         public override async Task Opened()
         {
-            await this.Device.Send("Hello world! (send 'back' to get back to Start)");
+            await this.Device.Send("Hello world! (send 'back' to get back to Start)\r\nOr\r\nhi, hello, maybe, bye and ciao");
         }
 
 

TelegramBaseTest/Tests/TestForm.cs

@@ -15,10 +15,6 @@ namespace TelegramBaseTest.Tests
 
         String LastMessage { get; set; }
 
-        public override async Task Init(params object[] param)
-        {
-            
-        }
 
         public override async Task Opened()
         {
@@ -30,12 +26,6 @@ namespace TelegramBaseTest.Tests
             await this.Device.Send("Ciao from Form 1");
         }
 
-        public override async Task Load(MessageResult message)
-        {
-
-
-        }
-
 
         public override async Task Action(MessageResult message)
         {

TelegramBaseTest/Tests/TestForm2.cs

@@ -15,10 +15,6 @@ namespace TelegramBaseTest.Tests
     public class TestForm2 : FormBase
     {
 
-        public override async Task Init(params object[] param)
-        {
-
-        }
 
         public override async Task Opened()
         {
@@ -30,10 +26,6 @@ namespace TelegramBaseTest.Tests
             await this.Device.Send("Ciao from Form 2");
         }
 
-        public override async Task Load(MessageResult message)
-        {
-
-        }
 
         public override async Task Action(MessageResult message)
         {