wcst_import should not print a warning if all paths were already imported

[Dimitar Misev]

wcst_import.sh: rasdaman v10.0.2 build g2f6d2a68
We found a resumer file in the ingredients folder. The slices listed in '/home/ubuntu/ingestion/s2-l2a/ingredients_overviews_nested/2022/05/01//S2_L2A_32628_AOT_60m.resume.json' will not be imported.
Collected first 0 files: []...
No files provided. Check that the paths you provided are correct. Done.

All filepaths were already imported and in the resume file. wcst_import should not print this warning:

No files provided. Check that the paths you provided are correct. Done.

and should also not print this if it's 0 files I think:

Collected first 0 files: []...

It's enough to print this:

All filepaths are already imported according to the resumer file.