Add CI to build both images

This change adds the needed directory structure and config
files under the ci directory to build both the mc-core and
the mc_listener images.  Changes are needed in the ci
management repo to "activate" these, so this is part 1
which sets the stage for the multi-image build.

Also added a brief README at the top level.

Signed-off-by: E. Scott Daniels <daniels@research.att.com>
Change-Id: Ief76d4e1a8811d06464af0d5d158de27bf5b0221

Make core directory name under ci consistent with root source dir

Change-Id: I797c0f6373dd12669a032e619a64dafc1322a401

Add correct tag for mc-core

Signed-off-by: E. Scott Daniels <daniels@research.att.com>
Change-Id: I0087ced6c876c3b91ca74f1b6e13a909ab765d4d

Add top level readme

Signed-off-by: E. Scott Daniels <daniels@research.att.com>
Change-Id: I0c1eb11d26ab86f0bda1a84256587bc2da460d53
diff --git a/README b/README
new file mode 100644
index 0000000..a2c8748
--- /dev/null
+++ b/README
@@ -0,0 +1,22 @@
+
+This repo contains source and documentation for the Management Campaign (MC) xAPP.
+
+The following is a list of important directories at the root level of
+the repo and a brief description of each.
+
+mc-core
+This is the source for the core MC application
+
+sidecars
+The MC application currently uses at least one "sidecar" container to
+listen for messages and to funnel them in. This directory contains
+one subdirectory per sidecar application.
+
+ci
+This is the continuous integration directory. Within the ci directory
+are subdirectories for each docker image which is created to support
+the application.
+
+docs
+Project documentation in a form which can be scraped from the repo and pushed
+to a "free standing" document hosting site.