Email in Address (#57)

Adds email attribute to address object

[ch4815](https://app.clubhouse.io/shipcloud/story/4815)

Author: mariiillo

CHANGELOG.md

@@ -1,7 +1,7 @@
 ## [Unreleased]
 ### Added
-
 - Support shipments with pickup requests as required for [TNT](https://developers.shipcloud.io/carriers/tnt.html).
+- Add attr_accessor for `email` to class `Shipcloud::Address` to be able to access the email attribute at the address object.
 
 ### Changed
 

lib/shipcloud/address.rb

@@ -3,7 +3,7 @@ class Address < Base
     include Shipcloud::Operations::Update
     include Shipcloud::Operations::All
 
-    attr_accessor :company, :first_name, :last_name, :care_of, :street,
+    attr_accessor :company, :first_name, :last_name, :care_of, :street, :email,
                   :street_no, :zip_code, :city, :state, :country, :phone
     attr_reader :id
 

spec/shipcloud/address_spec.rb

@@ -13,7 +13,8 @@
     city:        'Hamburg',
     state:       'Hamburg',
     country:     'DE',
-    phone:       '040/123456789'
+    phone:       '040/123456789',
+    email:       '[email protected]',
   }
 
   describe '#initialize' do
@@ -30,6 +31,7 @@
       expect(address.state).to eq 'Hamburg'
       expect(address.country).to eq 'DE'
       expect(address.phone).to eq '040/123456789'
+      expect(address.email).to eq '[email protected]'
     end
   end