add untouched analyzer for text promo rules & exact match rule conditions

[mvenghaus]

Hey there,

I already have an open pull request and an open issue, but since they are related here is a combined one.

When having a text attribute which is only used for promo rules there is no exact match possible. I use it in a custom collection ['eq' => '..'] and in promo rules via admin.

By default it is not possible do use a rule condition "is" or "is not" .. so I added these two. To make it work I added an untouched analyzer if used in promo rules is enabled.

https://github.com/Smile-SA/elasticsuite/pull/3168 https://github.com/Smile-SA/elasticsuite/issues/3171

Regards Marcus