Raise a Barley::InvalidAttributeError on type errors

[MoskitoHero]

Description

Up to now, type errors raised by dry-types within a Barley serializer were not very clear and not easy to track.

This MR introduces a new Barley::InvalidAttributeError to handle type errors in attributes with the key name, the expected type and the actual type found.

Type of change

Please delete options that are not relevant.

• New feature (non-breaking change which adds functionality)

How Has This Been Tested?

• serializer_test.rb

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing tests pass locally with my changes