Add interface to create and update user accounts

app/views/users/_form.haml

@@ -0,0 +1,9 @@
+= simple_form_for @user do |f|
+  = f.input :email, required: true
+  = f.input :password, required: true
+  = f.input :password_confirmation, required: true
+
+  .form-actions
+    = f.submit class: 'btn'
+
+= link_to 'Zurück', users_path

app/views/users/edit.haml

@@ -0,0 +1,2 @@
+%h1 Konto bearbeiten
+= render 'form'

app/views/users/index.html.haml

@@ -0,0 +1,8 @@
+%h1 Konten
+- for user in @users
+  %li 
+    = link_to user.email, user_path(user)
+%br
+= link_to 'Neues Konto', new_user_url
+|
+= link_to 'Zurück', suppliers_path

app/views/users/new.html.haml

@@ -0,0 +1,2 @@
+%h1 Neues Konto anlegen
+= render 'form'

app/views/users/show.html.haml

@@ -0,0 +1,9 @@
+%h1 Konto bearbeiten
+= @user.email
+%br
+%br
+= link_to 'Bearbeiten', edit_user_path(@user)
+|
+= link_to 'Löschen', user_path(@user), data: { confirm: 'Bist du sicher?' }, :method => :delete
+|
+=link_to 'Zurück', users_path