Add unicode emoji features

e.g.

5	😂	😂	EMOIMG	EMOIMG
g=smileys_&_emotion|s=face_smiling|q=fully_qualified|v=E0.6|n=face_with_tears_of_joy
	_	_	_	_

Change-Id: I96abc0b1933e86ab9a9ae015da919a4dc10a22b4
diff --git a/package.json b/package.json
index fdfb198..ac430e7 100644
--- a/package.json
+++ b/package.json
@@ -13,6 +13,7 @@
     "pkg-all": "npm run pkg-linux && npm run pkg-macos && npm run pkg-win",
     "pkg": "pkg",
     "test": "jest",
+    "update-emoji-db": "node scripts/update_emoji_db.js",
     "start": "node src/index.js"
   },
   "author": "Marc Kupietz",