Import mypy configuration script and run scripts (for Python 2.7 and 3.5).

Import pytest coverage script.

test/coverage.sh

@@ -0,0 +1,10 @@
+#!/bin/sh
+_cdir=$(cd -- "$(dirname "$0")" && pwd)
+type py.test > /dev/null 2>&1
+if [ $? -ne 0 ]; then
+	echo "err: py.test (Python testing framework) not found."
+	exit 1
+fi
+cd -- "${_cdir}/.."
+mkdir -p html
+py.test -v --cov-report=html:html/coverage --cov=ssh-audit test