Package fr3_impedance_controller_real in nix env

Including all deps. Tested with nix develop then roslaunch franka_example_controllers ....

Issue with libfranka version, in the end needed to use fetchGithub in Nix to get proper files.

Closes #7 (closed)

common/include/controller/DisturbanceObserver.hpp

@@ -22,7 +22,7 @@ public:
   DisturbanceObserver(const VecX<T> & fq);
 
   //* ----- SETTERS --------------------------------------------------------------------------------
-  void update_parameters(const T & dt, const VecX<T> & fq)
+  void set_parameters(const T & dt, const VecX<T> & fq)
   {
     dt_ = dt;
     fq_ = fq;