Enhancement: File upload does not have file count validation.

[nikhilpatel7]

Are you requesting a feature, reporting a bug or ask a question?

I need a feature to restrict user to upload minimum and maximum image (file upload) count, with validation message.

What is the current behavior?

Currently it only allows restriction is file size (bytes)

What is the expected behavior?

It should have a validation to restrict user to upload "x" number of images based on json.