std::mutex problem on windows / msvc 2022

[redhog]

In my plugin (crowdsource_pi), I'm using std::mutex, and this failed on windows (MSVC 2022) with an access violation inside the mutex implementation.

After a lot of digging, I found the culprit to be a version incompatibility between the STL headers of MSVC 2022 and the version of msvcp140.dll, see this thread:

https://developercommunity.visualstudio.com/t/Visual-Studio-17100-Update-leads-to-Pr/10669759

I ended up using the workaround described there (defining _DISABLE_CONSTEXPR_MUTEX_CONSTRUCTOR), but I assume this is a problem that might affect more people. I know too little of windows to be sure of the correct solution, but I'm assuming it would be either to distribute the correct version of msvcp140.dll with opencpn, or differentiating the builds for windows installs with different versions of that dll.