Convert users.yml to actual template

Since we're using `template` for this file now, convert it to an actual template.

Author: darronschall

lib/generators/test_unit/authentication/templates/test/fixtures/users.yml renamed to lib/generators/test_unit/authentication/templates/test/fixtures/users.yml.tt

@@ -2,5 +2,5 @@
 
 lazaro_nixon:
   email: lazaronixon@hotmail.com
-  password_digest: <%= BCrypt::Password.create("Secret1*3*5*") %>
+  password_digest: <%%= BCrypt::Password.create("Secret1*3*5*") %%>
   verified: true