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/@actions/github/package.json

@@ -0,0 +1,68 @@
+{
+  "_from": "file:toolkit\\actions-github-0.0.0.tgz",
+  "_id": "@actions/github@0.0.0",
+  "_inBundle": false,
+  "_integrity": "sha512-CByX5VIagC5BqGwsHD9Qt5MfN+H6GDC9qQl+MIUipaHTc89sUG/vAY/xQDS9vxuuRwrxbdERwKO3dR6U1BSziw==",
+  "_location": "/@actions/github",
+  "_phantomChildren": {},
+  "_requested": {
+    "type": "file",
+    "where": "C:\\Users\\Administrator\\Documents\\setup-node",
+    "raw": "@actions/github@file:toolkit/actions-github-0.0.0.tgz",
+    "name": "@actions/github",
+    "escapedName": "@actions%2fgithub",
+    "scope": "@actions",
+    "rawSpec": "file:toolkit/actions-github-0.0.0.tgz",
+    "saveSpec": "file:toolkit\\actions-github-0.0.0.tgz",
+    "fetchSpec": "C:\\Users\\Administrator\\Documents\\setup-node\\toolkit\\actions-github-0.0.0.tgz"
+  },
+  "_requiredBy": [
+    "#USER",
+    "/"
+  ],
+  "_resolved": "C:\\Users\\Administrator\\Documents\\setup-node\\toolkit\\actions-github-0.0.0.tgz",
+  "_shasum": "d9a87b3682d66d032fffcaff1adcdb2decd92b81",
+  "_spec": "@actions/github@file:toolkit/actions-github-0.0.0.tgz",
+  "_where": "C:\\Users\\Administrator\\Documents\\setup-node",
+  "bugs": {
+    "url": "https://github.com/actions/toolkit/issues"
+  },
+  "bundleDependencies": false,
+  "dependencies": {
+    "@octokit/graphql": "^2.0.1",
+    "@octokit/rest": "^16.15.0"
+  },
+  "deprecated": false,
+  "description": "Actions github lib",
+  "devDependencies": {
+    "jest": "^24.7.1"
+  },
+  "directories": {
+    "lib": "lib",
+    "test": "__tests__"
+  },
+  "files": [
+    "lib"
+  ],
+  "homepage": "https://github.com/actions/toolkit/tree/master/packages/github",
+  "keywords": [
+    "github",
+    "actions"
+  ],
+  "license": "MIT",
+  "main": "lib/github.js",
+  "name": "@actions/github",
+  "publishConfig": {
+    "access": "public"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/actions/toolkit.git"
+  },
+  "scripts": {
+    "build": "tsc",
+    "test": "jest",
+    "tsc": "tsc"
+  },
+  "version": "0.0.0"
+}