Bump version to 2.2.2 & other fixups

Bump version and copyright years

Reformatting

Make release script use MSVC build.

WinDivert 2.0.1-rc bugfix release.

Update WinDivert release build script.

Use snprintf() instead of sprintf_s().

The latter does not seem to work for MINGW.

Add workaround for #134

For some reason pseudo checksums do not work on
some systems.  The workaround is to modify
WinDivertSend() so that it calculates the full
checksums before forwarding the packet to the
driver.

Fix file missed in last commit.

Fix passthru bug introduced by recent commit.