Fix the build: Add library file from Mingw-w64 5.0.0

Without this binary file, which was ignored by git due to my
global .gitignore settings, compilation fails on the build
servers with an message like:

    no rule to make target `.../mingw-w64-v5.0.0/mingw-w64-crt/winrt/libruntimeobject.a', needed by `all-am'.  Stop.

Of course this works on my local machine since the file exists there :-/

This patch simply used 'git add -f' to force-add it and fix the build.

The binary file is 89 bytes long, and comes from the official
Mingw-w64-v5.0.0.tar.bz2 archive.

Change-Id: Iffb9b580c3574942a5e3746d8322f2aa02f773bd
diff --git a/mingw-w64-v5.0.0/mingw-w64-crt/winrt/libruntimeobject.a b/mingw-w64-v5.0.0/mingw-w64-crt/winrt/libruntimeobject.a
new file mode 100644
index 0000000..bc33fdd
--- /dev/null
+++ b/mingw-w64-v5.0.0/mingw-w64-crt/winrt/libruntimeobject.a
@@ -0,0 +1,2 @@