Add support to launch Boxedwine in another process from the UI on Mac
When a new process is launched with Poco, it calls fork then execvp. Fork seems to work and execvp doesn't not return, which is expected. But I do not see any output after the execvp which leads me to believe Boxedwine was not loaded and launched. The return code for the process is 260 (0x104). Calling strerror on that code return "Unknown error: 260".
Since this same code path works on Linux, I leaning towards this being a permission/sandbox issue on Catalina.