Misc of improvements (#182)

- Add 'so' method do Application
- Add module 'application'
- Deprecated DRY_RUN and RETRY_ON_FAILURE and replace by variables prefixed by GUARA_
- Improve logs

Improve logs (#180)

* Print clear logs
* Improve logs and hide secrets
* fix issues in tests
* Add `GUARA_DISABLE_LOGS` variable
* Bump version

Improve DDD example and behavior (#175)

- Add 'scenario' file to exemple
- Make 'driver' optional in AbstractTransaction constructor
- Bump version

Add documentation of DDD and fix asserts (#170)

* Fix mandatory parameters in Application.asserts method

* Add documentation of DDD and fix asserts
- Adds documentation and examples for DDD
- Fix the mandatory parameters in Application.asserts
- Bump version

* Fix link

* Add more info to tutorial

* Fix linter issues and skip ddd tests

Update documentation (#168)

* Review documentaion and add 'execute' verb to transactions

* Bump version

* Organize documentation

* Fixes

Add example of ubiquitous language (#164)

* Add example of ubiquitous language

* Fix linter issues

* Fix tests

* Fix linter issues

Bump version (#161)

Bump version (#157)

Remove dependency of python-dotenv (#151)

Bump version (#141)