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>
1 file changed