Support for pipeTransport for bash.exe

[rajkumar42]

WSL bash.exe needs arguments to be enclosed in quotes.

The extension should replace the tag ${debuggerCommand} with the actual debugger command when invoking bash.exe

Sample

        {
            "name": "Pipe Attach",
            "type": "coreclr",
            "request": "attach",
            "pipeTransport": {
                "pipeCwd": "${workspaceRoot}",
                "pipeProgram": "bash.exe",
                "pipeArgs": [ "-c", "\"${debuggerCommand}\""],
                "debuggerPath": "~/clrdbg/clrdbg"        
            },
            "processId": 405
        }

[WardenGnaw]

Fixed with #1322