Move supplier full pull to being an api for the ember app and handle login and authorization a little bit better (should be even a lot better in the future)

app/serializers/suppliers/employee_serializer.rb

@@ -1,4 +1,7 @@
 class Suppliers::EmployeeSerializer
   include Qwaiter::SupplierBaseSerializer
   attributes :name, :email, :manager, :active, :color
+  has_many :suppliers, serializer: Suppliers::SupplierSerializer
+
+  related_link_for :suppliers
 end

app/serializers/suppliers/employee_shift_serializer.rb

@@ -1,6 +1,6 @@
 class Suppliers::EmployeeShiftSerializer
   include Qwaiter::SupplierBaseSerializer
-  attributes :start_from, :end_on
+  attributes :start_from, :end_on, :description, :full_day
   has_one :supplier, serializer: Suppliers::SupplierSerializer
   has_one :employee, serializer: Suppliers::EmployeeSerializer
 end