message: Add a bit of location telemetry
diff: @@ -13,6 +13,7 @@ export class CustomLocationListStep<T extends IAppServiceWizardContext> extends
  const options: IAzureQuickPickOptions = { placeHolder: localize('selectLocation', 'Select a location for new resources.'), enableGrouping: true };
  const result: AzExtLocation | CustomLocation = (await wizardContext.ui.showQuickPick(this.getCustomQuickPicks(wizardContext), options)).data;
  if ('kubeEnvironment' in result) {
  + wizardContext.telemetry.properties.pickedCustomLoc = 'true';
  wizardContext.customLocation = result;
  // For any resources other than the app, we still need a non-custom location, so we'll use the kubeEnvironment's location
  await LocationListStep.setLocation(wizardContext, result.kubeEnvironment.location);
  @@ -21,6 +22,7 @@ export class CustomLocationListStep<T extends IAppServiceWizardContext> extends
  wizardContext.newPlanSku = { name: 'K1', tier: 'Kubernetes', size: 'K1', family: 'K', capacity: 1 };
  wizardContext.useConsumptionPlan = false;
  } else {
  + wizardContext.telemetry.properties.pickedCustomLoc = 'false';
  await LocationListStep.setLocation(wizardContext, result.name);
  }
  }
  @@ -36,6 +38,7 @@ export class CustomLocationListStep<T extends IAppServiceWizardContext> extends
  });
  let customLocations = <CustomLocation[]>response.data;
  customLocations = customLocations.sort((a, b) => a.name.localeCompare(b.name));
  + wizardContext.telemetry.properties.hasCustomLoc = String(customLocations.length > 0);
  picks.unshift(...customLocations.map(cl => {
  return {
  label: cl.name,
  