Add auth support (#21)

* Updates

* Update

* Update

* Update

* Update

* Yarn sometimes prefers npmrc, so use same token

* Description

* Update readme

* Feedback

* Add type

* new toolkit and scoped registries

* npmrc in RUNNER_TEMP

* Dont always auth

* Try exporting blank token

* Get auth working for now pending runner changes

* Fix string interpolation for auth token.

* Don't export both userconfigs

* Update authutil.js

* Add single quotes for authString

* Fix the registry string.

* Use userconfig and append trailing slash

* Keep in root of repo

* Try just adding auth token

* Remove auth token

* Try changes again

* Add tests

* Npm and GPR samples

* Add types

node_modules/@octokit/endpoint/dist-src/defaults.js

@@ -0,0 +1,15 @@
+import getUserAgent from "universal-user-agent";
+import { VERSION } from "./version";
+const userAgent = `octokit-endpoint.js/${VERSION} ${getUserAgent()}`;
+export const DEFAULTS = {
+    method: "GET",
+    baseUrl: "https://api.github.com",
+    headers: {
+        accept: "application/vnd.github.v3+json",
+        "user-agent": userAgent
+    },
+    mediaType: {
+        format: "",
+        previews: []
+    }
+};