Node-powershell await

Install: npm install node-powershell-await

Example:

    let Shell = require('node-powershell-await');
    let ps = new Shell({
        executionPolicy: 'Bypass',
        noProfile: true
    });
    
    async function getNodeversion() {
        ps.asyncAddCommand('node -v');
        console.log(await ps.asyncInvoke());
    }