[BUG] Dataset doesn't tell the user that it's downloading an MLCube

[aristizabal95]

During dataset submission, we need to download the data preparation MLCube to make sure it can be executed correctly. While this is happening, we're not letting the user know, and instead we're leaving a blank stdout which might worry the user and make him think the command stalled.

Printing some useful information to the user using the interactive display could be useful

[VukW]

#524

[VukW]

Another approach with printing via UI instead of writing mlcube logs directly to stdout:
#541

[VukW]

A fix to support displaying dynamic lines (i.e. ones that ends with \r instead of \n): #545

[VukW]

An improvement to hide exaustive docker cli hints from docker output: #546