新增定时任务封装以及配置自动清理数据库功能

新增
- server/config/timer.go
- server/initialize/timer.go
- server/utils/db_automation.go
- server/utils/timer/timed_task.go
修改
- server/config.yaml
- server/config/config/go
- server/global/global.go
- server/main.go

server/global/global.go

@@ -1,9 +1,12 @@
 package global
 
 import (
+	"gin-vue-admin/utils/timer"
+
 	"go.uber.org/zap"
 
 	"gin-vue-admin/config"
+
 	"github.com/go-redis/redis"
 	"github.com/spf13/viper"
 	"gorm.io/gorm"
@@ -15,5 +18,6 @@ var (
 	GVA_CONFIG config.Server
 	GVA_VP     *viper.Viper
 	//GVA_LOG    *oplogging.Logger
-	GVA_LOG *zap.Logger
+	GVA_LOG   *zap.Logger
+	GVA_Timer timer.Timer = timer.NewTimerTask()
 )