Support for passing arguments to commands

[futuremotiondev]

I was really hoping I could get this working with activitusbar, but I can't send arguments to the command unfortunately. Would be nice if you added an args parameter to the configuration so I could do something like this:

{
    "name": "command.terminalCommandKeys.run",
    "codicon": "terminal-cmd",
    "args": {
        "cmd": "dotnet run"
    },
    "tooltip": "Run .NET Application"
},