message: Move StorageClient from graph module into storage module
diff: @@ -12,5 +12,13 @@ add_library(
  )
  add_dependencies(storage_service_handler base_obj storage_thrift_obj kvstore_obj dataman_obj meta_obj)
  +
  +add_library(
  + storage_client OBJECT
  + client/StorageClient.cpp
  +)
  +
  +add_dependencies(storage_client base_obj storage_thrift_obj dataman_obj meta_obj)
  +
  add_subdirectory(test)
  