[ONOS-5805] MEF NRP REST API app for CE App

Migrating MEF NRP API translation app to onos-app-samples.

- Originally developed mainly by Konstantinos Kanonakis <kanonakisk@gmail.com>

- fixed NRP example JSON

Change-Id: If846dab4e08dcd17bc65a475b72fb3dc1a58cd9d
diff --git a/mef-nrp-api/src/main/resources/README b/mef-nrp-api/src/main/resources/README
new file mode 100644
index 0000000..9b7068d
--- /dev/null
+++ b/mef-nrp-api/src/main/resources/README
@@ -0,0 +1,8 @@
+
+
+nrp.json:
+  MEF NRP API definition taken from https://swaggerhub.com/api/jtpugac/MEF_NRP/1.0
+  with some minor modifications:
+   - Fixing the paths for getting LogicalTerminationPoint by node id and lpSpec type
+   - Correcting (swapping) the method names for getAllLogicalTerminationPoint() and getLogicalTerminationPoint()
+