shadowsocks-libev 1.4.7

Closes #32202.

Signed-off-by: Jack Nagel <jacknagel@gmail.com>
shadowsocks-libev: update 1.4.7 bottle.
libvisio: fix test failure.
libvisio: update 0.1.0_2 bottle.
shadowsocks-libev: update 1.4.7 bottle.