Add support to feed uuid to get results.

[Kocrachon]

I know its simple enough, but right now its a bit of a work around.

With the API as its built right now, I dont have the ability to download a scan that has existed. The only way to really download results is to kick off a scan, and then tell the script to download the file of the scans it kicked off. I run scans with thousands of hosts that can take a couple of days, so a script that runs and checks this is not entirely feasible. I also kick off more than one scan at once, so that also makes it hard to download results because the scan.self becomes the latest scan.

Right now, I have basically manually taken the download_scan function and manually filled it in from ID results I pulled elsewhere, but a function where I can call a second script to download specific scans based on ScanID/UUID later would be helpful.