Added example SONATA package to test fake gatekeeper (used as long as there is no latest *.son example in the son-schema repository).
This package already references to pre-build Docker images stored in SONATA's Docker repo in the int. infrastructure.
diff --git a/misc/sonata-demo-docker.son b/misc/sonata-demo-docker.son
new file mode 100644
index 0000000..98ce676
--- /dev/null
+++ b/misc/sonata-demo-docker.son
Binary files differ