npmrc file missing for test project

[mthalman]

The Secure Supply Chain Analysis build step is warning of a missing npmrc file:

##[warning]tests/testproject/nodeapp/package.json - CFS0001: Missing sibling .npmrc file. (https://aka.ms/cfs/npm)

Related to #1419

Let's get these SCCA warnings cleaned up for Preview 1. These show up in VMR builds, causing warnings which makes it difficult to identify when another new warnings pop up.

[eerhardt]

cc @davidfowl - who added the test.

(To anyone who knows) Is there a normal/default npmrc registry we can use? The internal documentation says to make a file that looks like:

registry=https://pkgs.dev.azure.com/[YOUR-ORGANIZATION]/[YOUR-PROJECT]/_packaging/[YOUR-PROJECT]_PublicPackages/npm/registry/

always-auth=true

But what should we put for [YOUR-ORGANIZATION]/[YOUR-PROJECT]? I don't think we need or want to make a brand new registry just for this test app.

[eerhardt]

Opened #1722 to resolve this.