Upgrade ASIO4ALL to v2.16

[ann0see]

URL

https://asio4all.org/version-2-16-released/

A new version of ASIO4ALL has been released. We should update the website. Reading the comments it seems that anti virus software flags it, so we may want to check if it's really safe before setting the link.

[melcon]

Reading the comments it seems that anti virus software flags it, so we may want to check if it's really safe before setting the link

VirusTotal Scan shows only 2 secuyrity vendors flagging it
https://www.virustotal.com/gui/file/c6b2f621a53584c581a9f5ce288d6d88562a062e2859de787c5e5d9453b75c50