Adding a Shared folder:

* init some shared functions (videoHasWebchat, parseConfigUUIDs)
* api/room: checking that video has live enabled
* fix promise handling in initChat function
* removing some 'use strict' that are no more necessary in typescript

shared/lib/config.ts

@@ -0,0 +1,16 @@
+function parseConfigUUIDs (s: string): string[] {
+  if (!s) {
+    return []
+  }
+  let a = s.split('\n')
+  a = a.map(line => {
+    return line.replace(/#.*$/, '')
+      .replace(/^\s+/, '')
+      .replace(/\s+$/, '')
+  })
+  return a.filter(line => line !== '')
+}
+
+export {
+  parseConfigUUIDs
+}