File module required, but not automatically activated

Problem/Motivation

On a fresh install I could not see file upload field at admin/config/development/csv-importer.

Steps to reproduce

Clean install, minimal profile, only activate CSV Importer. Go to admin/config/development/csv-importer and you will not see "Select CSV file" and "Choose File" button. To resolve it, you need to activate "File" core module.

Proposed resolution

Add "File" to required dependencies and activate it during module activation.

Remaining tasks

User interface changes

API changes

Data model changes