Black formatting of all python files

[amalnanavati]

This PR runs python3 -m black . at the top-level of this repository to get all files black formatted. This makes it easier for future developers to run black formatting, since they don't have to worry about adding unnecessary changes to their branch.

Testing shbould not be necessary since this is only formatting. Nevertheless, I ran ros2 launch ada_moveit demo.launch.py sim:=mock and verified that it works as expected.

[amalnanavati]

Bypassing branch protections since this is only a formatting change (I double-checked the code diff that the only changes are formatting)