[Feature request] Make `executorMap` behave differently for different OS platforms

[diogo-rossi]

It would solve many problems if the extension could identify the operating
system platform and run different executors.

Description of what would be a minimal interface:

{
    "code-runner.executorMap.windows": {
        "python": "python",
        "html": "\"C:\\Program Files (x86)\\Google\\Chrome\\Application\\chrome.exe\"",
        "c": "cd $dir && cl.exe $fileName -o $fileNameWithoutExt && $dir$fileNameWithoutExt"
    },
    "code-runner.executorMap.linux": {
        "python": "python3",
        "html": "/usr/local/bin/chrome",
        "c": "cd $dir && gcc $fileName -o $fileNameWithoutExt && $dir$fileNameWithoutExt"
    }
}

Related issues (still open)

• Different build commands for different OS platforms? #350
• [Feature request] Is there any config entry that can do OS specific Code Runner #1049