SEBA-497 delayering, Makefile, and tox for simpleexampleservice

Change-Id: If4d5895ad598e4861cf3d931d94d7e4cf56752e3
diff --git a/.dockerignore b/.dockerignore
new file mode 100644
index 0000000..b8f06bb
--- /dev/null
+++ b/.dockerignore
@@ -0,0 +1,2 @@
+.tox
+venv-service