[Tests] Add test case for symlinked node_modules with ignore

Hoping to add a test case that will help us resolve some of the issues explored in #70

Author: lencioni

tests/symlinked-node-modules/.licensee.json

@@ -0,0 +1,13 @@
+{
+  "licenses": {
+    "spdx": [
+      "Apache-2.0"
+    ]
+  },
+  "packages": {},
+  "ignore": [
+    {
+      "prefix": "mit-"
+    }
+  ]
+}

tests/symlinked-node-modules/node_modules/mit-licensed/index.js

@@ -0,0 +1,7 @@
+{
+  "name": "allowed",
+  "dependencies": {
+    "mit-licensed": "1.0.0"
+  },
+  "private": true
+}

tests/symlinked-node-modules/node_modules/mit-licensed/package.json

@@ -0,0 +1,5 @@
+var tap = require('tap')
+
+var results = require('../run')([], __dirname)
+
+tap.equal(results.status, 0)