Add gestionnaire management

app/mailers/gestionnaire_mailer.rb

@@ -0,0 +1,20 @@
+class GestionnaireMailer < ApplicationMailer
+
+  def new_gestionnaire email, password
+    send_mail email, password, "Vous avez été nommé accompagnateur sur la plateforme TPS"
+  end
+
+  private
+
+  def vars_mailer email, password
+    @password = password
+    @email = email
+  end
+
+  def send_mail email, password, subject
+    vars_mailer email, password
+
+    mail(from: "tps@apientreprise.fr", to: email,
+         subject: subject)
+  end
+end