Starting to include kafka-integration app as part of Buck build.

- refactored to follow the api & app structure
- added buck files
- builds and loads
- cleaned-up and fixed number of pom files to function as expected
      (meaning "mvn clean install" actually works)

Change-Id: Ib896269c4986f6ee5cd6bae7cf508f71b64f59f9
diff --git a/apps/kafka-integration/api/BUCK b/apps/kafka-integration/api/BUCK
new file mode 100644
index 0000000..4609fe9
--- /dev/null
+++ b/apps/kafka-integration/api/BUCK
@@ -0,0 +1,8 @@
+COMPILE_DEPS = [
+    '//lib:CORE_DEPS',
+    '//lib:kafka-clients',
+]
+
+osgi_jar_with_tests (
+    deps = COMPILE_DEPS,
+)
\ No newline at end of file