adding A::R::FromYaml role as a helper for A::R::FromHash
including A::R::From* roles into A::R::G so people don't have to compose them together manually
A::R is just a A::R::G
switching A::R::Cmd::runfromconfig to use precomposed class instead of manually composing roles
reviewing A::R::R doc NAME
reviewing A::R::R doc to escape angle-brackets
reviewing A::R::F doc again