[16.0][WIP][ADD] product_catalog: new module

[chienandalu]

Backport from the v17 functionality

WIP:

• [ ] Fix issues when grouping records
• [x] Split the sale.order part into its own module
• [x] Allow to add records to a document without price info (i.e.: stock.picking and stock.move.lines)

cc @Tecnativa TT50477