Added the method deleteMyCommands

Author: mircoianese

library/src/main/java/com/pengrad/telegrambot/model/DeleteMyCommands.java

@@ -0,0 +1,32 @@
+package com.pengrad.telegrambot.model;
+
+import com.pengrad.telegrambot.model.botcommandscope.BotCommandScope;
+import com.pengrad.telegrambot.request.BaseRequest;
+import com.pengrad.telegrambot.response.BaseResponse;
+
+public class DeleteMyCommands extends BaseRequest<DeleteMyCommands, BaseResponse> {
+
+    public DeleteMyCommands() {
+        super(BaseResponse.class);
+    }
+
+    /**
+     * 
+     * @param scope An object that extends the BotCommandScope class. For example: new BotCommandScopeAllPrivateChats()
+     * @return
+     */
+    public DeleteMyCommands scope(BotCommandScope scope) {
+        add("scope", scope);
+        return this;
+    }
+
+    /**
+     * 
+     * @param languageCode A two-letter ISO 639-1 language code. If empty, commands will be applied to all users from the given scope, for whose language there are no dedicated commands
+     * @return
+     */
+    public DeleteMyCommands languageCode(String languageCode) {
+        add("language_code", languageCode);
+        return this;
+    }
+}