Popcorn Cooking Utensils

 - new ROS node containing the ROS service client which will test
   the detection of the utensils involved in popcorn cooking.
 - new file for future testing code
 - updates for the CMakeLists.txt -> to build the test node too
 - new .launch file to launch the testing node
salter became SaltCellarw
A piece of infrastructure
  - based on the received designator, a specialized algorithm for
    each type of object is called.
A lot of updates and changes
 - new names for some of the source code files and for the executable to be build
 - he CookingUtensilsLocalizer got hooked in the delegation of the naive_perception
 - new debugger for CookingUtensilsLocalizer
New pieces of infrastructure.