Connector for BI: Install page missing deps for Windows

In:
https://docs.mongodb.com/bi-connector/current/tutorial/install-bi-connector/#id4

In the "Windows" prerequisites section we need to add the "Visual C++ Redistributable for Visual Studio 2015" as a prerequisite.

It can be downloaded from Microsoft here:
https://www.microsoft.com/en-us/download/details.aspx?id=48145

If the Visual C++ redist isn't installed the BI Connector binaries may fail to start with the error:
"The program cant start because VCRUNTIME140.dll is missing"