"ping" example:
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* Description: one thread pings another thread periodically

* Two deployement are provided, 
  1. ping.aadl deploys two nodes using TCP/IP, one thread per node,
  2. ping-local deploys one node, the two threads are on the same node.

* The AADL model used is conform to AADLv2

* Compilation: issue "make" in the root directory

* Execution: launch node_b, then node_a, or just node_a for the local case
