add MySQLMetaImpl::UpdateTableFilesToIndex and set maximum_memory to default if config value = 0

Former-commit-id: e3dba8250a2b8c28770811e5c202232bb59231c6

cpp/CHANGELOG.md

@@ -13,6 +13,7 @@ Please mark all change in change log and use the ticket from JIRA.
 - MS-157 - fix changelog
 - MS-190 - use env variable to switch mem manager and fix cmake
 - MS-224 - Return AlreadyExist status in MySQLMetaImpl::CreateTable if table already exists
+- MS-232 - add MySQLMetaImpl::UpdateTableFilesToIndex and set maximum_memory to default if config value = 0
 
 ## Improvement
 - MS-156 - Add unittest for merge result functions