Added the robot and global frames and functions to handle them.

Added the behavior tree layers for the generic navigation and costmap modules and the ackermann local planner module.

Completed the module classes for the generic move_base and costmap modules, and also the opendrive global planner and the ackermann local planner.

Split the original package into two: this one has the implementation of the generic navigation module.

Added a Python script to handle the generic nav_module parameters.
nav_module made template.
Solved some bugs.
Updated the client example.

Implemented for the ADC navigation module.