Add pre-commit config to standardize files

[stes]

This PR moves from using manual formatting to formatting defined with pre-commit. The make format routine was also adapted accordingly.

Note, the formatting was intentially not run on all third_party files, to make it easier to compare these to original versions.

Fix https://github.com/AdaptiveMotorControlLab/CEBRA-dev/pull/646

[cla-bot]

Thank you for your pull request and welcome to our community. We could not parse the GitHub identity of the following contributors: CEBRA.
This is most likely caused by a git client misconfiguration; please make sure to:

1. check if your git client is configured with an email to sign commits git config --list | grep email
2. If not, set it up using git config --global user.email email@example.com
3. Make sure that the git commit email is configured in your GitHub account settings, see https://github.com/settings/emails

[cla-bot]

Thank you for your pull request and welcome to our community. We could not parse the GitHub identity of the following contributors: CEBRA.
This is most likely caused by a git client misconfiguration; please make sure to:

1. check if your git client is configured with an email to sign commits git config --list | grep email
2. If not, set it up using git config --global user.email email@example.com
3. Make sure that the git commit email is configured in your GitHub account settings, see https://github.com/settings/emails

[MMathisLab]

• one time CLA fail accept for "CEBRA", which consists of the current dev team: @stes @gonlairo @CeliaBenquet @MMathisLab who have signed CLA.

[cla-bot]

Thank you for your pull request and welcome to our community. We could not parse the GitHub identity of the following contributors: CEBRA.
This is most likely caused by a git client misconfiguration; please make sure to:

1. check if your git client is configured with an email to sign commits git config --list | grep email
2. If not, set it up using git config --global user.email email@example.com
3. Make sure that the git commit email is configured in your GitHub account settings, see https://github.com/settings/emails