Add the ability to selectively delete local copies of a file from the cache

[gscaparrotti]

It would be very helpful to add the aforementioned feature.

This would allow the deletion of very large file without having the need to completely delete the onedriver.db file.

PS: thank you a lot for your efforts!

[pdvrieze]

In a similar request, it would be good to be able to manage the cache size.

[jstaf]

Yeah this is coming, currently working on doing it in https://github.com/jstaf/onedriver/issues/291

[zilpe]

Hey @jstaf, how would we go about doing this now that #291 is closed?