Add node modules and new code for release (#39)

Co-authored-by: tbarnes94 <tbarnes94@users.noreply.github.com>

node_modules/import-local/index.js

@@ -0,0 +1,19 @@
+'use strict';
+const path = require('path');
+const resolveCwd = require('resolve-cwd');
+const pkgDir = require('pkg-dir');
+
+module.exports = filename => {
+	const globalDir = pkgDir.sync(path.dirname(filename));
+	const relativePath = path.relative(globalDir, filename);
+	const pkg = require(path.join(globalDir, 'package.json'));
+	const localFile = resolveCwd.silent(path.join(pkg.name, relativePath));
+	const localNodeModules = path.join(process.cwd(), 'node_modules');
+	const filenameInLocalNodeModules = !path.relative(localNodeModules, filename).startsWith('..');
+
+	// Use `path.relative()` to detect local package installation,
+	// because __filename's case is inconsistent on Windows
+	// Can use `===` when targeting Node.js 8
+	// See https://github.com/nodejs/node/issues/6624
+	return !filenameInLocalNodeModules && localFile && path.relative(localFile, filename) !== '' && require(localFile);
+};