chore: clean branch

[michielpauw]

What I did

Clean PR after issues with #2390.

Within ING Thijs Louiss and his team had created an easy to use CLI to run migrations codemods for their project. After discussions with Thijs, I abstracted the core behaviour of this CLI so that it can be used for any JS migration. For further details, please check out the README.

Thanks @tlouisse for letting me use your code!

feat: added cli to run migrations
feat: export MigrateCli: class using Commander to provide a intuitive and adaptable CLI
feat: export UpgradeCommandBase: extendable command implementing upgrade behaviour
feat: export executeJsCodeShiftTransforms: function that runs jscodeshift on a codebase
test: added unit tests for classes
test: e2e testing of CLI
test: WIP unit tests for executeJsCodeShiftTransforms
chore: added README

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