Add version.h.
Add a known limitation - can't inherit current directory or env-vars.
Change to Windows SDK version 10.0.17763.0.
This was the test code for passing current directory to ShellExecute, but as
Convert to UTF-8. (Some were UTF-16, which Mercurial thinks is binary).
Add version resource.
Build to '.built' subdir, and turn off 'track file access' to suppress
Initial commit