Added functional CSIT tests for DFC

New test case for single file download and publish
Minor refactoring of Management interface test

Issue-ID: DCAEGEN2-1313
Change-Id: I2436db42a5884a7d828dbefcf9678aa9cdf064e3
Signed-off-by: BjornMagnussonXA <bjorn.magnusson@est.tech>
diff --git a/plans/dcaegen2-collectors-datafile/Functional-suite/teardown.sh b/plans/dcaegen2-collectors-datafile/Functional-suite/teardown.sh
new file mode 100644
index 0000000..1a0ec6e
--- /dev/null
+++ b/plans/dcaegen2-collectors-datafile/Functional-suite/teardown.sh
@@ -0,0 +1,13 @@
+#!/usr/bin/env bash
+
+#Stop dfc
+
+kill-instance.sh dfc_app
+
+#Stop all simulators 
+
+kill-instance.sh dfc_dr-sim
+kill-instance.sh dfc_dr-redir-sim
+kill-instance.sh dfc_mr-sim
+kill-instance.sh dfc_sftp-server
+kill-instance.sh dfc_ftpes-server-vsftpd
\ No newline at end of file