[WIP] PIM-3319: Added value check for filters and specs

Add check on values for filters

| Q                    | A
| -------------------- | ---
| Bug fix?             |
| New feature?         |
| BC breaks?           |
| CI currently passes? |
| Tests pass?          |
| Scenarios pass?      |
| Checkstyle issues?*  |
| PMD issues?**        |
| Changelog updated?   |
| Fixed tickets        |
| DB schema updated?   |
| Migration script?    |
| Doc PR               |
not always a numeric can be a scalar, cf https://github.com/akeneo/pim-community-dev/blob/PIM-3319/src/Pim/Bundle/CatalogBundle/Resources/config/query_builders.yml#L130