feat: implement rayon for search

[FranticTyping]

• Implement rayon processing for search

Searching

Before:

➜  release git:(master) time ./chainsaw search foo ~/Downloads/evtx --skip-errors -o foo

 ██████╗██╗  ██╗ █████╗ ██╗███╗   ██╗███████╗ █████╗ ██╗    ██╗
██╔════╝██║  ██║██╔══██╗██║████╗  ██║██╔════╝██╔══██╗██║    ██║
██║     ███████║███████║██║██╔██╗ ██║███████╗███████║██║ █╗ ██║
██║     ██╔══██║██╔══██║██║██║╚██╗██║╚════██║██╔══██║██║███╗██║
╚██████╗██║  ██║██║  ██║██║██║ ╚████║███████║██║  ██║╚███╔███╔╝
 ╚═════╝╚═╝  ╚═╝╚═╝  ╚═╝╚═╝╚═╝  ╚═══╝╚══════╝╚═╝  ╚═╝ ╚══╝╚══╝
    By WithSecure Countercept (@FranticTyping, @AlexKornitzer)

[+] Loading forensic artefacts from: /Users/jamesdorgan/Downloads/evtx
[+] Loaded 2240 forensic files (9.4 GB)
[+] Searching forensic artefacts...
[+] Found 616 hits
./chainsaw <snip>  212.15s user 12.71s system 347% cpu 1:04.68 total

After:

➜  release git:(feat/speed_improvements) ✗ time ./chainsaw search foo ~/Downloads/evtx --skip-errors -o foo

 ██████╗██╗  ██╗ █████╗ ██╗███╗   ██╗███████╗ █████╗ ██╗    ██╗
██╔════╝██║  ██║██╔══██╗██║████╗  ██║██╔════╝██╔══██╗██║    ██║
██║     ███████║███████║██║██╔██╗ ██║███████╗███████║██║ █╗ ██║
██║     ██╔══██║██╔══██║██║██║╚██╗██║╚════██║██╔══██║██║███╗██║
╚██████╗██║  ██║██║  ██║██║██║ ╚████║███████║██║  ██║╚███╔███╔╝
 ╚═════╝╚═╝  ╚═╝╚═╝  ╚═╝╚═╝╚═╝  ╚═══╝╚══════╝╚═╝  ╚═╝ ╚══╝╚══╝
    By WithSecure Countercept (@FranticTyping, @AlexKornitzer)

[+] Loading forensic artefacts from: /Users/jamesdorgan/Downloads/evtx
[+] Loaded 2240 forensic files (9.4 GB)
[+] Searching forensic artefacts...
[+] Found 616 hits
./chainsaw <snip>  234.79s user 6.54s system 631% cpu 38.205 total

[FranticTyping]

@alexkornitzer - Can I get your review on this?

[alexkornitzer]

If we are happy with out of order hits then, yep this is fine with me