added mail contronller and job for notificate registrars and admins about accreditation expire date

app/mailers/accreditation_center_mailer.rb

@@ -0,0 +1,21 @@
+class AccreditationCenterMailer < ApplicationMailer
+  def test_was_successfully_passed_admin(email)
+    subject = 'Test passed admin'
+    mail(to: email, subject: subject)
+  end
+
+  def test_was_successfully_passed_registrar(email)
+    subject = 'Test passed registrar'
+    mail(to: email, subject: subject)
+  end
+
+  def test_results_will_expired_in_one_month(email)
+    subject = 'Test will expired in one month'
+    mail(to: email, subject: subject)
+  end
+
+  def test_results_are_expired(email)
+    subject = 'Test are expired'
+    mail(to: email, subject: subject)
+  end
+end