headers: Import propvarutil.h from wine This reverts d603db2c1544a26c7e1153208b660f1c0f0f21d7 commit. The added functions are required for qt6-multimedia v6.2.0. Signed-off-by: Biswapriyo Nath <nathbappai@gmail.com> Signed-off-by: LIU Hao <lh_mouse@126.com>