Log Message:
Import boringssl into the packages collection.  This is a tar file of
the sources taken at 20151230 from

	https://boringssl.googlesource.com/boringssl/

with portability fixes for NetBSD.  It installs into ${PREFIX}/bssl to
avoid conflicts with openssl.

	BoringSSL is a fork of OpenSSL that is designed to meet Google's
	needs.

	Although BoringSSL is an open source project, it is not intended for
	general use, as OpenSSL is.  We don't recommend that third parties
	depend upon it.  Doing so is likely to be frustrating because there
	are no guarantees of API or ABI stability.

	Programs ship their own copies of BoringSSL when they use it and we
	update everything as needed when deciding to make API changes.  This
	allows us to mostly avoid compromises in the name of compatibility.
	It works for us, but it may not work for you.

	BoringSSL arose because Google used OpenSSL for many years in various
	ways and, over time, built up a large number of patches that were
	maintained while tracking upstream OpenSSL.  As Google's product
	portfolio became more complex, more copies of OpenSSL sprung up and
	the effort involved in maintaining all these patches in multiple
	places was growing steadily.