Introduce CPS integration testing (CSIT)

Issue-ID: CPS-188
Change-Id: I4a225da73587d5276f302b05a0729d1127caddd9
Signed-off-by: Ruslan Kashapov <ruslan.kashapov@pantheon.tech>
diff --git a/csit/plans/default/testplan.txt b/csit/plans/default/testplan.txt
new file mode 100644
index 0000000..edcad0d
--- /dev/null
+++ b/csit/plans/default/testplan.txt
@@ -0,0 +1,4 @@
+# Test suites are relative paths under csit/tests/.
+# Place the suites in run order.
+actuator
+