[RM-12369] Back office purchase screen multi-dimensional grid view

Adds a new process in Purchase Order window that allows selecting from a list of products, the amount of variants of each type to populate the Order Lines.

Flows

Main flow	Remove product	Duplicate Variants	Tabular Data Insertion

Screenshots

Characteristic Dimensions

Multidimension	Single Row Dimension	Product Extended Selector

Error Product with no Product Price	Error Adding same product twice

Related MRs

• detailedstock: https://gitlab.com/openbravo/product/pmods/org.openbravo.pos2.detailedstock/-/merge_requests/11
• retail.sampledata: https://gitlab.com/openbravo/product/pmods/org.openbravo.retail.sampledata/-/merge_requests/104
• retail.testsampledata: https://gitlab.com/openbravo/ci/modules/org.openbravo.retail.testsampledata/-/merge_requests/100
• test.mobile.sampledata: https://gitlab.com/openbravo/ci/modules/org.openbravo.test.mobile.sampledata/-/merge_requests/141
• awo.sampledata: https://gitlab.com/openbravo/ci/modules/org.openbravo.warehouse.advancedwarehouseoperations.sampledata/-/merge_requests/31
• pos2.sampledata: https://gitlab.com/openbravo/product/pmods/org.openbravo.pos2.sampledata/-/merge_requests/91
• pos2.restaurant.sampledata: https://gitlab.com/openbravo/product/pmods/org.openbravo.pos2.restaurant.sampledata/-/merge_requests/10
• mobile-test: https://gitlab.com/openbravo/ci/mobile-test/-/merge_requests/393
• detailedstock.api: https://gitlab.com/openbravo/product/pmods/org.openbravo.pos2.detailedstock.api/-/merge_requests/3

CI

• try: https://builds.openbravo.com/job/try-init/3842/console ✔
• try-retail: https://builds.openbravo.com/job/try-ret-init/11996/artifact/retail.html ✔
• try-pos2: https://builds.openbravo.com/job/try-pos2-init/7068/console ✔