osInfo() add domain (windows)

lib/osinfo.js

@@ -228,6 +228,7 @@ function osInfo(callback) {
         distro: 'unknown',
         release: 'unknown',
         codename: '',
+        domain: '',
         kernel: os.release(),
         arch: os.arch(),
         hostname: os.hostname(),
@@ -364,6 +365,7 @@ function osInfo(callback) {
           workload.push(util.powerShell('(Get-CimInstance Win32_ComputerSystem).HypervisorPresent'));
           workload.push(util.powerShell('Add-Type -AssemblyName System.Windows.Forms; [System.Windows.Forms.SystemInformation]::TerminalServerSession'));
           workload.push(util.powerShell('reg query "HKLM\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion" /v DisplayVersion'));
+          workload.push(util.powerShell('Get-CimInstance Win32_ComputerSystem | select Domain | fl '));
           util.promiseAll(workload).then((data) => {
             const lines = data.results[0] ? data.results[0].toString().split('\r\n') : [''];
             result.distro = util.getValue(lines, 'Caption', ':').trim();
@@ -378,6 +380,8 @@ function osInfo(callback) {
               const codenameParts = data.results[3].split('REG_SZ');
               result.codename = codenameParts.length > 1 ? codenameParts[1].trim() : '';
             }
+            const domain = data.results[4] ? data.results[4].toString().split('\r\n') : [''];
+            result.domain = util.getValue(domain, 'Domain', ':').trim();
             if (!result.codename) {
               const buildNum = parseInt(result.build, 10);
               result.codename = getWindowsRelease(buildNum);