Currently the Custom Tools Plugin supports downloading and extracting tools from zip and tar.gz files. When a custom tool consists of a single downloadable file it will still try to unpack the file. A don't extract setting would be usefull.

An example of a tool where this is relevant would be NuGet, which is just a single executable download from https://dist.nuget.org/win-x86-commandline/latest/nuget.exe Right now a script is needed to install NuGet as a tool.

(Btw, I'm not entirely sure on for which plugin this should be, so I added both. Feel free to remove the incorrect one...)