Issue 74 customer pricelist

[davidpodhola]

TL;DR

This is the first part about the Customer Price List adding the Customer Price List CRUD screens and the sales invoice line calculation. It is missing:

• changes in the invoicing screen
• setting up the products for the Customer Price List
• reports

Proof

and also see sales.invoice.line.service.spec.ts.

Merge request checklist

Please check if your merge request fulfills the following requirements:

• Tests for the changes have been added (for bug fixes/features)
• Docs have been reviewed and added/updated if needed (for bug fixes/features)
• Build (yarn build) was run locally and any changes were pushed for both API and clients
• API (yarn api:dev) runs locally and any fixes were made for failures
• Admin Client (cd clients/admin && yarn start) runs locally and any fixes were made for failures

Merge request type

• Bugfix
• Feature
• Code style update (formatting, renaming)
• Refactoring (no functional changes, no APIoduce changes)
• Build related changes
• Documentation content changes
• Other (please describe):

Before this merge request

You had to calculate the invoice line price manually.

How you fixed what was wrong

Changed the sales invoice line calculation to use the price list if available.