title: NUnit Specflow how to share a class instance for all tests
body: <p>I am using Specflow with NUnit and Selenium and want to share instance of driver across all tests.
  I can do do this up to feature level with FeatureContext but can't see anything for all tests. I am aware that this is probably not the right way to go but I want to know if there is a way.</p>
  
  <p>Please help with example(s).</p>
  
  <p>Thanks</p>