Windows Prefetch, Spotify & Discord cache for KCleaner

[Lyuda6732]

These would be really nice to add to KCleaner. These are always taking up a few GBs of space.

Prefetch is C:\Windows\prefetch
Spotify is C:\Users\USERNAME\AppData\Local\Spotify\Storage
and Discord is C:\Users\USERNAME\AppData\Roaming\Discord\Cache

[Kyle_Katarn]

Added to the feature request list :
Prefetch : https://www.kcsoftwares.com/bugs/view.php?id=1056
Spotify : https://www.kcsoftwares.com/bugs/view.php?id=5765
Discord : https://www.kcsoftwares.com/bugs/view.php?id=5766