Add 2 new packages to chromiumos-overlay

dev-python/parallel-ssh
dev-python/ssh2-python

These packages do not exist in gentoo - importing from PiPy

BUG=None
TEST=Moblab and tryjob.

Cq-Depend: chromium:1598725
Change-Id: If656dc9badf2e43f1226505a998e49a1df2fa729
Reviewed-on: https://chromium-review.googlesource.com/1633012
Commit-Ready: Keith Haddow <haddowk@chromium.org>
Tested-by: Keith Haddow <haddowk@chromium.org>
Legacy-Commit-Queue: Commit Bot <commit-bot@chromium.org>
Reviewed-by: Keith Haddow <haddowk@chromium.org>
Reviewed-by: Jason Clinton <jclinton@chromium.org>
diff --git a/dev-python/ssh2-python/ssh2-python-0.17.0.ebuild b/dev-python/ssh2-python/ssh2-python-0.17.0.ebuild
new file mode 100644
index 0000000..76b41b4
--- /dev/null
+++ b/dev-python/ssh2-python/ssh2-python-0.17.0.ebuild
@@ -0,0 +1,19 @@
+# Copyright 2019 The Chromium OS Authors. All rights reserved.
+# Distributed under the terms of the GNU General Public License v2.
+
+EAPI=6
+
+PYTHON_COMPAT=( python{2_7,3_4,3_5,3_6} pypy )
+
+inherit distutils-r1
+
+DESCRIPTION="Asynchronous parallel SSH client library."
+SRC_URI="mirror://pypi/${PN:0:1}/${PN}/${P}.tar.gz"
+
+LICENSE="Apache-2.0"
+SLOT="0"
+KEYWORDS="*"
+
+RDEPEND=""
+DEPEND="${RDEPEND}
+	dev-python/setuptools[${PYTHON_USEDEP}]"