Update FeatureContext::$result and FeatureContext::$email_sends property visibility to protected (#170)

Author: thelovekesh

src/Context/FeatureContext.php

@@ -24,12 +24,12 @@ class FeatureContext implements SnippetAcceptingContext {
 	/**
 	 * The result of the last command run with `When I run` or `When I try`. Lives until the end of the scenario.
 	 */
-	private $result;
+	protected $result;
 
 	/**
 	 * The number of emails sent by the last command run with `When I run` or `When I try`. Lives until the end of the scenario.
 	 */
-	private $email_sends;
+	protected $email_sends;
 
 	/**
 	 * The current working directory for scenarios that have a "Given a WP installation" or "Given an empty directory" step. Variable RUN_DIR. Lives until the end of the scenario.