title: Spring Boot run hierarchical profiles configuration
body: <p>I have the following Spring project structure (which I cannot change):</p>
  <pre><code>project/
      config/
          us/
              dev.yml
              stg.yml
          dev.yml
          stg.yml
      src/
          main/
              java/
              resources/
                  application.yml
  </code></pre>
  <p>I'd like to run the following hierarchical profiling: <code>application.yml</code>, then override with <code>dev.yml</code>, and again override with <code>us/dev.yml</code>. I have no clue on how to perform this succesfully</p>