Add some reply message functions

+//=============================================================
+var express = require('express');
+const request = require('request');
+const config = require('../config.json');
+//=============================================================
+const LINE_URL = 'https://api.line.me/v2/bot/message';
+const TOKEN = config.TOKEN;
+//=============================================================
+
+exports.SayIDontKnow = function (replyToken) {
+    request.post(
+        {
+            url: LINE_URL + '/reply',
+            headers: {
+                'Authorization': `Bearer ${TOKEN}`
+            },
+            json: {
+                "replyToken": replyToken,
+                "messages": [
+                    {
+                        "type": "text",
+                        "text": "이해하지 못했습니다."
+                    }
+                ]
+            }
+        }, (error, response, body) => {
+            console.log(body)
+        });
+}
+
+exports.test_1 = function (replyToken) {
+    request.post(
+        {
+            url: LINE_URL + '/reply',
+            headers: {
+                'Authorization': `Bearer ${TOKEN}`
+            },
+            json: {
+                "replyToken": replyToken,
+                "messages": [
+                    {
+                        "type": "text",
+                        "text": "영화 장르를 선택해주세요."
+                    }
+                ]
+            }
+        }, (error, response, body) => {
+            console.log(body)
+        });
+}
+
+exports.test_2 = function (replyToken) {
+    request.post(
+        {
+            url: LINE_URL + '/reply',
+            headers: {
+                'Authorization': `Bearer ${TOKEN}`
+            },
+            json: {
+                "replyToken": replyToken,
+                "messages": [
+                    {
+                        "type": "text",
+                        "text": "검색할 단어를 입력해주세요."
+                    }
+                ]
+            }
+        }, (error, response, body) => {
+            console.log(body)
+        });
+}
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