Replace "maven:dependency" relationship description with something more meaningful

[Riduidel]

Currently, dependencies detected through maven build all have the maven:dependency relationship description. This is a good default value, but couldn't we do better ?

We could read the maven pom using a standard XML parser and detect comments "near" the dependencies, or tags of a given namespace, but this would be quite hard for dependencies coming from BOM or other maven corner cases.

We could also add an additionnal file (something like src/architecture/resources/relationships-descriptions.???) where each key would be a dependency canonical path (groupId:artifactId) and each value would be a description.

The second solution has the advantage of allowing each module to easily define why a dependency is used and the additionnal advantage to easily be usable for other dependency systems (think about NPM, Python pip, and so on : as long as we can build a "path" out of a dependency, we can add that dependency to that file and it will appear in documentation).

[Riduidel]

Decision we wil use the additionnal file mechanism:

A new file can be added named src/architecture/resources/relationships-descriptions.properties

In this file, each key is a relationship name (from->to) and value is the description

[Riduidel]

Code should have three parts

1. Detect when relationships are added
2. Load the relationship description file
3. Change the relationship description according to what is read in that file