Import companies from Excel (RTC-26694)

Companies can be imported from Excel file using 'Import' button in the 'Companies' view. Required columns are "Company code", "Company name", "Country", "Organization no.". Exported file with companies should be used as import file template. Import can be used to create new and update existing companies. Companies are identified by "Country" and "Organization no." pair ("Organization no" unique within "Country". "Company code" and "Ext. company no." must be unique. Companies can be deactivated using file when all stores within company are inactive. "VAT no." column is ignored in Norway and Sweden - value is generated as in user interface. Existing values can be cleared by importing "NULL" in cell. When an import is finished, the user gets a notification.

Remove obsolete validation when importing stores from OnPrem (RTC-25000)

Stores are imported properly when: post code is empty, city is empty, close date is before opening date, local store number is 0, phone is not valid for given country code.
Phone is validated to be a number. Spaces are removed from number to make it valid. Country calling code prefix is added.
Store groups with type 'Common' and 'Default' are skipped instead of failing.