cli: verfiy that a phone has a internet connection before a test (#3152)

lib/cli/cli.js

@@ -687,6 +687,13 @@ module.exports.parseCommandLine = function parseCommandLine() {
       describe:
         'How long time to wait (in seconds) if the androidBatteryTemperatureWaitTimeInSeconds is not met before the next try'
     })
+    .option('browsertime.androidVerifyNetwork', {
+      alias: 'androidVerifyNetwork',
+      type: 'boolean',
+      default: false,
+      describe:
+        'Before a test start, verify that the device has a Internet connection by pinging 8.8.8.8 (or a configurable domain with --androidPingAddress)'
+    })
     .option('browsertime.chrome.android.deviceSerial', {
       alias: 'chrome.android.deviceSerial',
       describe: