[WIP] Add a notice when we reach the max nb of indexes of a mongo collection

Add a notice to prevent the following error when we install the PIM with Mongo and more than 64 indexes for values
Error #67 in class MongoResultException: localhost:27017: add index fails, too many indexes for pim_ce_mongo.pim_catalog_product key:{ normalizedData.completenesses.mobile-en_US: 1 }

The new message is the following, 
`Too many MongoDB indexes (64), not way to add Array
(
    [0] => normalizedData.light_metering-de_DE
    [1] => normalizedData.light_metering-en_US
    [2] => normalizedData.light_metering-fr_FR
)

| 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               |