refactor auth pkg into libraries

auth/pwdless/chores.go

@@ -0,0 +1,18 @@
+package pwdless
+
+import (
+	"time"
+
+	"github.com/dhax/go-base/logging"
+)
+
+func (rs *Resource) choresTicker() {
+	ticker := time.NewTicker(time.Hour * 1)
+	go func() {
+		for range ticker.C {
+			if err := rs.Store.PurgeExpiredToken(); err != nil {
+				logging.Logger.WithField("chore", "purgeExpiredToken").Error(err)
+			}
+		}
+	}()
+}