Add FMF test metadata and scripts

Copy and adjust the browser.sh and run-test.sh scripts from
cockpit-podman, which we have used in Fedora/RHEL dist-git gating and
packit tests for a while.

test/browser/run-test.sh

@@ -0,0 +1,25 @@
+#!/bin/sh
+set -eux
+
+# tests need cockpit's bots/ libraries and test infrastructure
+cd $SOURCE
+git init
+make bots test/common
+
+# only install a subset to save time/space
+rm -f package-lock.json  # otherwise the command below installs *everything*, argh
+npm install chrome-remote-interface sizzle
+
+. /etc/os-release
+export TEST_OS="${ID}-${VERSION_ID/./-}"
+export TEST_AUDIT_NO_SELINUX=1
+
+EXCLUDES=""
+
+RC=0
+test/common/run-tests --nondestructive --machine 127.0.0.1:22 --browser 127.0.0.1:9090 $EXCLUDES || RC=$?
+
+echo $RC > "$LOGS/exitcode"
+cp --verbose Test* "$LOGS" || true
+# deliver test result via exitcode file
+exit 0