Fix the case where there is an @ in the absolute path of sysroot and XEUS_CPP_RESOURCE_DIR in Emscripten build#333

mcbarton merged 7 commits intocompiler-research:maincompiler-research/xeus-cpp:mainfrom

mcbarton:Fix-issue-with-sysroot_path-and-XEUS_CPP_RESOURCE_DIR-with-@-in-absolute-pathmcbarton/xeus-cpp:Fix-issue-with-sysroot_path-and-XEUS_CPP_RESOURCE_DIR-with-@-in-absolute-pathCopy head branch name to clipboard