[14.0] shopfloor: better messages

[mmequignon]

Attempt to make shopfloor messages more meaningful, especially when scanning an unexpected record.
The general idea is too avoid those barcode not found errors in cases where the barcode was found, but not relevant.

Based on:

• [14.0] stock_available_to_promise_release: Allow unrelease processed qties #971

Supersedes:

• [14.0] shopfloor checkout: Better messages #983
• [IMP][14.0] shopfloor delivery: Better messages #972

[OCA-git-bot]

Hi @TDu, @simahawk, @guewen, @JuMiSanAr, @sebalix,
some modules you are maintaining are being modified, check this out!