Improve response factories and add helper functions

app/http/controllers/Test.controller.ts

@@ -1,13 +1,18 @@
 import Controller from '../../../lib/src/http/Controller.ts'
+import {Request} from '../../../lib/src/http/Request.ts'
+import {error, html, redirect} from '../../../lib/src/http/response/helpers.ts'
 
 export default class TestController extends Controller {
 
-    get_home(req: any) {
-        req.response.body = 'Hello!'
+    get_home(request: Request) {
+        return html('<h1>Hi!</h1>')
     }
-    get_user_home(req: any) {
-        throw new Error('Hello, world!')
-    }
-    create_user_home(req: any) {}
 
+    get_user_home(request: Request) {
+        return redirect('/home')
+    }
+
+    create_user_home(request: Request) {
+        return error('Not implemented!')
+    }
 }