variable_additional_price was not multiplied by the result of getPricingVariable
as it was done in previous implementation.

In order that the caller has more information about how the price was computed,
Resource_getPriceCalculationOperandDict now returns the result of
getPriceParameterDict with following changed:
- list values involved in priced calculation are replaced by their sums
- 'price' key is added to holds the computed price

Also removing fallback code from Resource class, since it's been a long time
that erp5_pdm provides Resource_getPriceCalculationOperandDict
Resource_getPrice script is kept in case some unrelated code still uses it.

There can be two cases:
- the image is on the same domain that the agent is using, then the agent is logged in
- the image is on another domain, then the agent is not logged in but we can somehow guess from referer that he is viewing the image from ERP5

also make redirection stay on website

erp5_ingestion: Improve publication_section field in Base_viewNewFileDialog to be possible pass a default value to the field

The category uid should be passed to the query. With this, is possible generate queries like stock.project_uid is NULL.

This script is intended to replace Base_getCurrencyForSection and support
properly the case where there are more than one currency.
Start using it in accounting module view and grouping reference dialog.

Contributed by Jingjing XU.

Revert "TemplateTool: keep_bt5_id_set can't be None because the is expecting one set or list at least."

This reverts commit b72cc56a.

because it overrides WebPage_viewAsWeb.

Also, expose and document unicity score divisor.