title: Need to use codeception parameters in test code
body: <p>I have environment configuration in my acceptance.suite.yml config file.
  One of the parameters is language. I need to know this parameter value in the actual test code to be able to drive test steps correctly. </p>
  
  <p>acceptance.suite.yml config content:</p>
  
  <pre><code> class_name: WebGuy
  modules:
      enabled:
          - WebDriver
          - WebHelper
          - Db
      config:
          WebDriver:
              browser: firefox
  env:
      eng:
          modules:
              config:
                  WebDriver:
                     url: 'localhost'
                     lang: en
     esp:
          modules:
              config:
                  WebDriver:
                      url: 'localhost'
                      lang: es
  </code></pre>
  
  <p>How can I get the language parameter value?</p>