Re: Naming about VSG and MManager

+1，support named schemaregion and dataregion.we need distinguish between previous nouns. ---Original--- From: "Jialin Qiao"

Naming about VSG and MManager

Hi, After discussion with Chao Wang and Xiangdong, we'd like to rename some classes. (1) VirtualStorageGroupProcessor -> DataRegion (2) MManager -> SchemaRegion In each instance, we have a SchemaEngine to manage many SchemaRegion, and a StorageEngine to manage many DataRegion. In this way, we