create a parse command to modify, add or delete obstacles in Nvaeau2015

src/PatternGeneratorInterfacePrivate.cpp

src/ZMPRefTrajectoryGeneration/ZMPVelocityReferencedSQP.cpp

src/ZMPRefTrajectoryGeneration/ZMPVelocityReferencedSQP.hh

src/ZMPRefTrajectoryGeneration/nmpc_generator.cpp

src/ZMPRefTrajectoryGeneration/nmpc_generator.hh

tests/TestNaveau2015.cpp