Saving index per user as TSV. Refactoring.

package.json

@@ -4,7 +4,8 @@
   "description": "Reddit user post dump tool with versatile saving patterns and fallback searches for deleted users.",
   "main": "app.js",
   "scripts": {
-    "start": "node src/app.js"
+    "start": "node src/app.js",
+    "inspect": "node --inspect src/app.js"
   },
   "pkg": {
     "scripts": "src/app.js",
@@ -31,6 +32,7 @@
     "bluebird": "^3.5.1",
     "cheerio": "^1.0.0-rc.2",
     "config": "^1.30.0",
+    "csv": "^3.1.0",
     "date-fns": "^1.29.0",
     "dist-exiftool": "^10.53.0",
     "fluent-ffmpeg": "^2.1.2",