CORD-2772 set version number for fabric service

Change-Id: I01ca8feefcc01392415a5f85b91dbe058c023d64
diff --git a/VERSION b/VERSION
new file mode 100644
index 0000000..519af9a
--- /dev/null
+++ b/VERSION
@@ -0,0 +1 @@
+6.0.0.dev