Add MRU to argument prompt when debugging a PowerShell script

Summary of the new feature

When one debugs a PowerShell script with the "PowerShell Launch Current File w/Args Prompt" configuration:

        {
            "type": "PowerShell",
            "request": "launch",
            "name": "PowerShell Launch Current File w/Args Prompt",
            "script": "${file}",
            "args": [
                "${command:SpecifyScriptArgs}"
            ],
            "cwd": "${file}"
        },

the input field is pre-filled with the most recent arguments input on the previous debug session.

It would be useful to have a list of most recently used argument lists, so that one could easily test the same script with several sets of arguments.

Proposed technical implementation details (optional)

The list should be sorted by most-recently used argument list.

Inizia con la configurazione PowerShell Launch Current File w/Args Prompt e l’input ${command:SpecifyScriptArgs} descritti nell’issue. Segui il modo in cui viene popolato il prompt e determina dove vengono gestiti i suoi elenchi di argomenti recenti. Il lavoro è completo quando il prompt offre gli elenchi di argomenti usati in precedenza in ordine dal più recente al meno recente.