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)

flake.nix

@@ -60,6 +60,11 @@
         interactive-markers
         spacenav-node
         rqt-reconfigure
+        dynamic-reconfigure
+        # python-qt-binding
+        # qt-gui-core
+        # py-binding-tools
+        rqt-plot
         #rviz # adding this induces nix develop error
 
         ## for impedance controller
@@ -108,6 +113,7 @@
                   #pkgs.python3Packages.pincas
                   pkgs_2411.casadi
                   pkgs_2411.pinocchio
+                  pkgs.python311Packages.pyqt5 # for rqt_reconfigure
                 ];
               })
             ];