[MERGE] forward port of branch 7.0 up to da15c9d2

addons/account/account.py

addons/account/account_assert_test.xml

addons/point_of_sale/security/point_of_sale_security.xml

addons/point_of_sale/static/src/js/models.js

addons/product/product.py

addons/purchase/purchase.py

addons/stock/stock.py

addons/web/static/src/js/search.js

addons/web/static/src/js/view_form.js