make_gdb_work_on_arch

// fix launch.json by adding this.
// make sure to change the gcc version, currently on 9.2.0
// check with: ``c++ --version``
// reference

"setupCommands": [
                {
                    "description": "Enable pretty-printing for gdb",
                    "text": "-enable-pretty-printing",
                    "ignoreFailures": true
                },
                {
                    "text": "set substitute-path /build/gcc/src/gcc-build/x86_64-pc-linux-gnu/libstdc++-v3/include /usr/include/c++/9.2.0"
                }
            ],