Add support for watch main package files through bee.json

bee.json

@@ -1,5 +1,9 @@
 {
 	"dir_structure":{
-		"controllers": "routers"
-	}
+		"controllers": "",
+		"models": ""
+	},
+	"files": [
+		"main.go"
+	]
 }

run.go

@@ -40,6 +40,7 @@ var conf struct {
 		Controllers string
 		Models      string
 	} `json:"dir_structure"`
+	Files []string
 }
 
 func runApp(cmd *Command, args []string) {
@@ -58,6 +59,7 @@ func runApp(cmd *Command, args []string) {
 	paths = append(paths,
 		path.Join(crupath, conf.DirStruct.Controllers),
 		path.Join(crupath, conf.DirStruct.Models))
+	paths = append(paths, conf.Files...)
 
 	NewWatcher(paths)
 	appname = args[0]

watch.go

@@ -53,6 +53,8 @@ func NewWatcher(paths []string) {
 			}
 		}
 	}()
+
+	fmt.Println("[INFO] Initializing watcher...")
 	for _, path := range paths {
 		fmt.Println(path)
 		err = watcher.Watch(path)