Change return type of RuleInvokerService::invokeRules

[bvedrenne]

Summary

The return of the method RuleInvokerService::invokeRules is a string. Can it be a list of object with information like:

• Rule name
• Error message
• Others (like filename, line, etc.) but it seems harder to code

Type of Issue

It is a :

• [ ] bug
• [X] request
• [ ] question regarding the documentation

Motivation

This behavior can be usefull to create a post-error analysing process. It can be use by arch-unit-maven-plugin to have maven report or csv output.