Remove lombok

[this-kramer]

Reason for this PR:

Removing Lombok makes the project more accessible and resolves some compatibility problems from the past. However, for this, we need to add the code that was generated by Lombok using the delombok tool and some postprocessing.

• Remove Lombok from the 'crypto' package.
• Remove Lombok from the 'promotion' package.
• Remove Lombok from the 'service' package.

[this-kramer]

Spot-checked. Will obviously not check all 119 files 😄

Sure 😄 The changes are primarily automatic code generation and refactoring with some careful manual cleanup in the end.