[REQ] ability to configure temporary folder location

### Is your feature request related to a problem? Please describe
During decompression, Keka currently creates the temporary file/folder in the same location as the destination.

When extracting a large file to a slow media destination (e.g. a USB drive) the end-to-end extraction process is very slow as :
1. Keka extracts file to a temporary directory on the destination location
2. copies temporary directory contents to destination location

For slow media such as USB drives, this means that data is copied twice - making things take a very long time.

### Describe the solution you'd like
An option to configure the temporary file location e.g. options such as Same as destination (default), /tmp, etc)

### Describe alternatives you've considered

Manual workaround when wanting to extract a compressed file that exists on a USB
1. extract file on local HDD
2. copy extracted contents to USB

This is faster than extracting a file directly on the USB drive, however involves additional steps.