Make custom_fields tagging an option and do not tag all fields automatically #231
Description
Issue:
We have several examples of product data within merchants accounts which send tons of data. Most of the data is irrelevant, as Shopware users tend to use additional product fields for other purposes, such as internal data or for logistics.
Solution:
We need to provide a menu section with a button in Shopware's UI so that every merchant has control over it.
An alternative would be to not amend and calculate it automatically, but to make merchant override plugins to then enable this. I think this will cause less friction.