Cfnet

<!-- Release notes generated using configuration in .github/release.yml at master -->

What's Changed
New Features
* add german credit and credit card datasets by BirkhoffG in https://github.com/BirkhoffG/cfnet/pull/24
* update to nbdev v2 by BirkhoffG in https://github.com/BirkhoffG/cfnet/pull/26


**Full Changelog**: https://github.com/BirkhoffG/cfnet/compare/v0.0.5...v0.0.6

<!-- Release notes generated using configuration in .github/release.yml at master -->

What's Changed
Bug Fixed
* add `data_name` in `TabularDataModule` as attributes, add `dataset_name` as an optional param in CFExplanationResults by BirkhoffG in https://github.com/BirkhoffG/cfnet/pull/22
* compatibility of attributes in `CFExplanationResults` for previous version by BirkhoffG in https://github.com/BirkhoffG/cfnet/pull/23


**Full Changelog**: https://github.com/BirkhoffG/cfnet/compare/v0.0.4...v0.0.5

<!-- Release notes generated using configuration in .github/release.yml at master -->

What's Changed
New Features
* Support Immutable Features by BirkhoffG in https://github.com/BirkhoffG/cfnet/pull/10
* implement a safer sigmoid by BirkhoffG in https://github.com/BirkhoffG/cfnet/pull/12
* implement diverseCF and protoCF by BirkhoffG in https://github.com/BirkhoffG/cfnet/pull/15
* support optional monitor metrics in trainingconfigs by BirkhoffG in https://github.com/BirkhoffG/cfnet/pull/18
Bug Fixed
* fix optional args in generate_cf_results_cfnet by BirkhoffG in https://github.com/BirkhoffG/cfnet/pull/17
Other Changes
* ensure all test cases pass by BirkhoffG in https://github.com/BirkhoffG/cfnet/pull/19

- Refactor util functions 4