[FEATURE] Cache downloads / Resume Downloads per layer

[ItsIgnacioPortal]

Sometimes, when using easyWSL the connection might get interrupted, and the whole process will come to a halt, and will have to be restarted from the beggining. It'd be really good if we could cache layer downloads so only the failed layers have to be downloaded again.

Right now, it is practically impossible to download heavy docker images on an unstable connection using easyWSL

[wr0belj]

Resuming downloads doesn't seem to possible because of limitations of using Docker Hub API. But caching layers is definitely possible and we are going to consider adding it in the new release.