Adding re-initialization using gnss poses button on Rviz

[meliketanrikulu]

While autoware is initializing, if a corruption occurs or localization is corrupted, I think it would be useful to add a re-initialization button using gnss poses from rviz again. It's an option we need while working on the vehicle. In such cases, using the "2D pose estimate" in rviz and initializing it again is both more difficult and time consuming.

[YamatoAndo]

@meliketanrikulu We haven't maintained it because there were no users, but the functionality already exists.
Please refer this link.

[meliketanrikulu]

@YamatoAndo thank you

[YamatoAndo]

@meliketanrikulu
Once this PR is merged, you will be able to perform re-initialization by clicking on Init by GNSS.