Fix pre-commit and ros lint

[muritane]

Main changes:

• kuka_eki_hw_interface.h -> kuka_eki_hw_interface.hpp
• sort includes
• unsigned long long -> uint64_t
• unsigned short -> uint16_t
• /* -> // as these comment blocks are not recognized by ament_copyright
• "Software License Agreement" should be after "Copyright (c)" to be recognized by ament_copyright
• BSD License -> BSD License 2.0 (@destogl is this 2.0 ok or should it be other clause?)
• ReflowComments: false -> true
• Ignore flake8 W503: Line break occurred before a binary operator as it is outdated and goes against the PEP 8 recommended style (should be reactivated after update)
• add packages to ci ros lint

[destogl]

Please address the changes on EKI stuff – they should be in a separate PR toward rolling. We don't want to address them here. (If there are some changes in #12 I will remove them.)

The correct license is 3-Clause BSD License