Small fixes needed to run on Windows

[thepirat000]

• Adding script for Models download for windows
• Added arg --ignore_audio to allow ignoring the audio merge post processing
• Removed the requests lib version from requirements.txt

[illtellyoulater]

Thanks for your fixes!

In my case removing the version number from requests was not enough for the dependencies to be resolved correctly.

I also had to downgrade from python 3.8 to python 3.7...

To make sure I was setting everything correctly I just uninstalled the 3.8 environment, then removed the sber-swap dir, then created a new python 3.7 environment, then I git-cloned again the sben-swap repo, then ran those couple of lines from the README instructions... and only then I finally ran again pip install -r requirements.txt, which completed without any problems.