Add ability to decompress kernel object files on boot

**What I'd like:**
The kernel module objects included in packages like the `kmod-6.1-nvidia-r570-tesla` package can be compressed to save some disk space (about 26MB currently). If `driverdog` could detect this and automatically decompress these objects before linking them, it save a bit of disk space for the variants using that driver.

**Any alternatives you've considered:**

Not compressing the objects and leaving them in their larger state. Using EROFS essentially does this for the entire filesystem, we could put these files in an EROFS volume instead.