[MIG] website_customer : migraton to new api

addons/website_customer/controllers/__init__.py

addons/website_customer/controllers/main.py

addons/website_customer/data/res_partner_demo.xml

addons/website_customer/models/res_partner.py

addons/website_customer/security/ir_rule.xml

addons/website_customer/views/res_partner_views.xml

addons/website_customer/views/website_customer_templates.xml