refactor: examples/pnet (#523)

* refactor: examples/pnet

* chore: rename pnet-ipfs to pnet

* chore: address review

examples/pnet/utils.js

@@ -0,0 +1,28 @@
+'use strict'
+const fs = require('fs')
+const path = require('path')
+
+/**
+ * mkdirp recursively creates needed folders for the given dir path
+ * @param {string} dir
+ * @returns {string} The path that was created
+ */
+module.exports.mkdirp = (dir) => {
+  return path
+    .resolve(dir)
+    .split(path.sep)
+    .reduce((acc, cur) => {
+      const currentPath = path.normalize(acc + path.sep + cur)
+
+      try {
+        fs.statSync(currentPath)
+      } catch (e) {
+        if (e.code === 'ENOENT') {
+          fs.mkdirSync(currentPath)
+        } else {
+          throw e
+        }
+      }
+      return currentPath
+    }, '')
+}