[JENKINS-20812] Store AuthorizeProjectStrategy global configs inside a separate folder.
Improves an @ikedam's solution for https://issues.jenkins-ci.org/browse/JENKINS-20812

Signed-off-by: Oleg Nenashev <nenashev@synopsys.com>
Merge pull request #4 from oleg-nenashev/configs_storage_refactoring

[JENKINS-20812] Store AuthorizeProjectStrategy global configs inside a separate folder.