DEV: Provide method for auth plugins to generate a CSRF token

DEV: Provide method for auth plugins to generate a CSRF token

diff --git a/lib/csrf_token_verifier.rb b/lib/csrf_token_verifier.rb
index 875e65e..56ed911 100644
--- a/lib/csrf_token_verifier.rb
+++ b/lib/csrf_token_verifier.rb
@@ -23,6 +23,8 @@ class CSRFTokenVerifier
     end
   end
 
+  public :form_authenticity_token
+
   private
 
   attr_reader :request

GitHub sha: 923c46f5