crt: add more DLLs to windowsapp

There are many DLLs with their API entries listed by MS that were no linkable
yet using -lwindowsapp as recommended for apps the can run on all types of
devices.

https://docs.microsoft.com/en-us/uwp/win32-and-com/win32-apis
Signed-off-by: Liu Hao <lh_mouse@126.com>
diff --git a/mingw-w64-crt/lib-common/api-ms-win-core-file-l2-1-2.def b/mingw-w64-crt/lib-common/api-ms-win-core-file-l2-1-2.def
new file mode 100644
index 0000000..85cb277
--- /dev/null
+++ b/mingw-w64-crt/lib-common/api-ms-win-core-file-l2-1-2.def
@@ -0,0 +1,13 @@
+LIBRARY api-ms-win-core-file-l2-1-2
+
+EXPORTS
+
+CopyFile2
+CopyFileExW
+CopyFileW
+CreateHardLinkW
+CreateSymbolicLinkW
+GetFileInformationByHandleEx
+MoveFileExW
+ReadDirectoryChangesW
+ReplaceFileW