examples: Add very basic consumer/producer apps

Change-Id: I3c80448b3894f0609a15596bf16c8833ab2f8add
diff --git a/.gitignore b/.gitignore
index 9da7ccd..968fa6e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -75,3 +75,7 @@
 # Tools
 tools/tlvdump
 
+# Examples
+examples/consumer
+examples/producer
+