regarding your git hub repository, even if Boost can be build on Visual Studio and even if Boost is multi-platform, patches will be accepted if they can primarily be build with bjam and cmake because these are the 2 native building systems in Boost.
Moreover, patches must be processor and operating system independent or have conditional to make them compilable on every platform we support. Of course, in your case, you're specifically writing code for SSE/AVX so it doesn't have to be processor independent !!!! :-D
Best,
David