This enables us to rebroadcast some events that are not captured.

fix:
…/sot-core/src/tools/device.cpp: In member function ‘virtual void dynamicgraph::sot::Device::setState(const Vector&)’:
…/sot-core/src/tools/device.cpp:248:7: warning: this statement may fall through [-Wimplicit-fallthrough=]
       }
       ^
…/sot-core/src/tools/device.cpp:249:5: note: here
     case CONTROL_INPUT_ONE_INTEGRATION:
     ^~~~

fix:

…/sot-core/src/tools/robot-utils.cpp: In member function ‘void dynamicgraph::sot::RobotUtil::sendMsg(const string&, dynamicgraph::MsgType, const string&)’:
…/sot-core/src/tools/robot-utils.cpp:449:49: warning: ‘void dynamicgraph::Logger::sendMsg(std::__cxx11::string, dynamicgraph::MsgType, const string&)’ is deprecated: use stream(type, lineId) << msg [-Wdeprecated-declarations]
   logger_.sendMsg("[RobotUtil]" + msg, t, lineId);
                                                 ^
In file included from …/sot-core/include/sot/core/robot-utils.hh:23:0,
                 from …/sot-core/src/tools/robot-utils.cpp:29:
…ll/include/dynamic-graph/logger.h:225:3: note: declared here
   sendMsg(std::string msg, MsgType type, const std::string &lineId = "");
   ^~~~~~~
…/sot-core/src/tools/device.cpp: In member function ‘virtual void dynamicgraph::sot::Device::setState(const Vector&)’:
…/sot-core/src/tools/device.cpp:248:7: warning: this statement may fall through [-Wimplicit-fallthrough=]
       }
       ^
…/sot-core/src/tools/device.cpp:249:5: note: here
     case CONTROL_INPUT_ONE_INTEGRATION:
     ^~~~

Update warning msgs

Co-authored-by: Guilhem Saurel <guilhem.saurel@laas.fr>

the install rpath allow plugins to find each other

ROS buildfarm test everything in isolated environments, se we must also
set the build rpath

Improves error msg when there is no robot registered in
ParameterServer (parameter-server.cpp)
Improves robustness to pragma inclusion (robot-utils.hh)
Display parameter_tree when calling displayRobotUtils
(robot-utils.cpp)