Feature/improve logging (#411)

* Add log names

* Split logging functions

* type -> dtype

* Original lags formatting

* Change testing function

* Parametrize log step, add tests

* Correct format

* Revert factory strategy

* Added tests for log_pd

* Minor changes to tests

* Implementation of logger

* fixed with partial

* Added docstring

* Custom logger and minor improvements

* Test for log_extra

* Small fixes to tests and some extra tests

* Implementation of log_func_extra

* Made get_shape_delta non-public

* Update documentation with some examples

* Let user supply print function instead of logger settings, default to print()

* Docstrings for tests and extra test

Co-authored-by: david26694 <david26694@gmail.com>
Co-authored-by: vincent d warmerdam <vincentwarmerdam@gmail.com>