Add links to open source projects using Sharpmake

[mundak]

Hi all,

I think it would be super useful to has a list of links for the projects that are using Sharpmake. It's really hard to google any existing configurations that go beyond provided basic samples.

Having such list could provide a valuable source for figuring out more complicated scenarions.

[sammyfreg]

I am using it with NetImgui.

It generates different Solutions/Projects per Visual Studio version, compile MSBuild and Clang compile targets.

It also supports including and compiling hlsl shaders, but is not used anymore.