rename src to PSync and change include style

refs #4779

Change-Id: I74a08a6e4ab4909be49341f60ed9735f76b3da59

tests/test-partial-sync.cpp

@@ -17,8 +17,8 @@
  * PSync, e.g., in COPYING.md file.  If not, see <http://www.gnu.org/licenses/>.
  **/
 
-#include "partial-producer.hpp"
-#include "consumer.hpp"
+#include "PSync/partial-producer.hpp"
+#include "PSync/consumer.hpp"
 #include "unit-test-time-fixture.hpp"
 
 #include <boost/test/unit_test.hpp>