Add RoleHierarchyBuilder

[FdHerrera]

Create builder class to declaratively create a RoleHierarchy with a fluent API, add test. Closes #13300
gh-13300

[jzheaux]

Thanks for the PR, @FdHerrera! Given that this is ultimately in the service of RoleHierarchyImpl, will you please move this into that class? In that way, I believe it will also better align with #13788

[FdHerrera]

Thank you very much for your feedback, @jzheaux !

I'll start implementing your suggestions.

[jzheaux]

Thanks, @FdHerrera! Things are shaping up nicely. I've left a little bit more feedback inline.

Also, in preparation for merging, will you please squash your commits into a single commit that looks something like this:

Add RoleHierarchy.Builder

Closes gh-13300

[FdHerrera]

Thank you for the thorough review and constructive feedback! I appreciate the collaborative back-and-forth @jzheaux .

I implemented your suggestions and squashed the commits, I think is looking pretty good let me hear your thoughts!

[FdHerrera]

I believe it will also better align with #13788

Also, regarding this comment, should I change the commit and description to close that issue instead of gh-13300?

[jzheaux]

Thanks, @FdHerrera! I've added a polish to make it align more closely with the rest of the codebase stylistically.

For now, I think we should leave out withNoRolePrefix and wait to see how the community uses the class. In other places in Spring Security, ROLE_ is the default and you supply a string value to override the default. There isn't the notion elsewhere in the code base of "no prefix". I went ahead and adjusted that in my polish commit. Let me know if me removing that method causes a problem.

[FdHerrera]

Looks good @jzheaux thank you for your help!