Locale line ODT tags

The purpose of this PR is to create the following tags:
* {line_price_ht_locale}
* {line_price_vat_locale}
* {line_price_ttc_locale}

Because order and shipment modules were assigning locale number format to non-locale tag and this behaviour was not correct, I've changed it.

Also, I've corrected array indentation, that's why you may see many changes (i've separated it into 2 commits so that PR check is easier)