Banking Kata - Refactoring exceptions based on the domain model

[valentinajemuovic]

Discussed in #3

^{Originally posted by trmalek May 5, 2022}

• For the exceptions part I see that we have a repositoryException. It is technical word in domain and it is worth nothing we must explain the exceptions by model domain and be close to the business lexicon (ubiquitous language). For example, we can have an accountException class and methods inside that express the different exceptions related to Account and so on...