[build2] Boost package

[Klaim - Joël Lamotte]

On Tue, 11 Dec 2018 at 13:41, Boris Kolpackov <boris at codesynthesis.com> wrote:
> That's a nice start. What could be helpful is to instrument vcpkg to
> dump the actual command line it is about to execute and then build
> a couple of packages to see what it things look like. In fact, I
> wonder if vcpkg has some kind of a verbose mode where one can see
> all the underlying command it is executing.

I think it does, though I would have to check some dependency
manipulation/build to be sure all the commands are there.
I will not be able to progress on this this week (I think) but I noted
to do this next.

Joël