feat: UOM specific barcodes

[ankush]

Often warehouses might have different packaging items they stock. Like single unit, box of 100, a special pack of 42 etc.

These different packaging can be represented by UOM and people use different barcodes for each type of UOM. The problem is, when these barcodes are scanned in transaction the default UOM is fetched instead of fetching barcode-specific UOM.

This feature adds a new field on the barcode table where you can specify the UOM for any barcode. When that barcode is scanned the UOM is auto-updated on the table.

You can also scan two different UOMs in same transactions and they'll be added as separate rows instead.

Demo:

docs: https://docs.erpnext.com/docs/v14/user/manual/en/stock/articles/track-items-using-barcode

closes #30777

integration test: frappe/erpnext_ui_tests#112

Credit: This is largely based on proposed implementation by @szufisher ( https://discuss.erpnext.com/t/multiple-barcodes-for-different-uoms/31577/10?u=ankush )

[codecov]

Codecov Report

Merging #30988 (720e851) into develop (536f1df) will increase coverage by 0.04%.
The diff coverage is n/a.

@@             Coverage Diff             @@
##           develop   #30988      +/-   ##
===========================================
+ Coverage    63.39%   63.43%   +0.04%     
===========================================
  Files          986      986              
  Lines        67368    67368              
===========================================
+ Hits         42706    42734      +28     
+ Misses       24662    24634      -28     

Impacted Files	Coverage Δ
erpnext/stock/utils.py	77.90% <ø> (ø)
...t/product_bundle_balance/product_bundle_balance.py	79.54% <0.00%> (-15.91%)	⬇️
...saction/incorrect_balance_qty_after_transaction.py	88.37% <0.00%> (-9.31%)	⬇️
.../report/bom_operations_time/bom_operations_time.py	89.13% <0.00%> (-2.18%)	⬇️
erpnext/stock/reorder_item.py	73.33% <0.00%> (-1.67%)	⬇️
erpnext/stock/doctype/warehouse/warehouse.py	77.62% <0.00%> (-1.40%)	⬇️
erpnext/stock/report/stock_ageing/stock_ageing.py	95.19% <0.00%> (-0.49%)	⬇️
...xt/e_commerce/doctype/website_item/website_item.py	47.52% <0.00%> (-0.42%)	⬇️
erpnext/controllers/stock_controller.py	91.40% <0.00%> (-0.25%)	⬇️
...xt/accounts/doctype/sales_invoice/sales_invoice.py	78.30% <0.00%> (-0.09%)	⬇️
... and 15 more