Fixed #326: EnrichmentTag upload REST API - controller + service

I'll decrease it a little, but still we have to be prepared for a big number.
10 000 000 judgments (in the future) * 10 tags * 500 bytes per tag ~= 50 GB
Of course the numbers are a little exaggerated, but the number is just an indicator that something is wrong - we can trust the source of data because it's ICM's system.