storge: make different directory for modules

Signed-off-by: NLiFeng <lifeng68@huawei.com>

src/image/oci/storage/CMakeLists.txt

 # get current directory sources files
 aux_source_directory(${CMAKE_CURRENT_SOURCE_DIR} local_storage_srcs)
-add_subdirectory(graphdriver)
+add_subdirectory(image_store)
+add_subdirectory(layer_store)
+add_subdirectory(container_store)
 
 set(STORAGE_SRCS
     ${local_storage_srcs}
-    ${GRAPHDRIVER_SRCS}
+    ${IMAGE_STORE_SRCS}
+    ${LAYER_STORE_SRCS}
+    ${CONTAINER_STORE_SRCS}
     PARENT_SCOPE
     )
 
 set(STORAGE_INCS
     ${CMAKE_CURRENT_SOURCE_DIR}
-    ${GRAPHDRIVER_INCS}
+    ${IMAGE_STORE_INCS}
+    ${LAYER_STORE_INCS}
+    ${CONTAINER_STORE_INCS}
     PARENT_SCOPE
     )

src/image/oci/storage/container_store/CMakeLists.txt

+# get current directory sources files
+aux_source_directory(${CMAKE_CURRENT_SOURCE_DIR} local_container_store_srcs)
+
+set(CONTAINER_STORE_SRCS
+    ${local_container_store_srcs}
+    PARENT_SCOPE
+    )
+set(CONTAINER_STORE_INCS
+    ${CMAKE_CURRENT_SOURCE_DIR}
+    PARENT_SCOPE
+    )

src/image/oci/storage/image_store/CMakeLists.txt

+# get current directory sources files
+aux_source_directory(${CMAKE_CURRENT_SOURCE_DIR} local_image_store_srcs)
+
+set(IMAGE_STORE_SRCS
+    ${local_image_store_srcs}
+    PARENT_SCOPE
+    )
+set(IMAGE_STORE_INCS
+    ${CMAKE_CURRENT_SOURCE_DIR}
+    PARENT_SCOPE
+    )

src/image/oci/storage/layer_store/CMakeLists.txt

+# get current directory sources files
+aux_source_directory(${CMAKE_CURRENT_SOURCE_DIR} local_layer_store_srcs)
+add_subdirectory(graphdriver)
+
+set(LAYER_STORE_SRCS
+    ${local_layer_store_srcs}
+    ${GRAPHDRIVER_SRCS}
+    PARENT_SCOPE
+    )
+set(LAYER_STORE_INCS
+    ${CMAKE_CURRENT_SOURCE_DIR}
+    ${GRAPHDRIVER_INCS}
+    PARENT_SCOPE
+    )