Add: GetAll to cacher interface

cachemdl/cache.go

@@ -25,7 +25,7 @@ type Cacher interface {
 
 	// GET
 	Get(key string) (interface{}, bool)
-	// GetAll() map[string]interface{}
+	GetAll() map[string]interface{}
 
 	// DELETE
 	Delete(key string)