Converted the majority of the core and operations to use CommonJS module syntax.

package.json

@@ -25,6 +25,9 @@
     "type": "git",
     "url": "https://github.com/gchq/CyberChef/"
   },
+  "scripts": {
+    "build": "webpack"
+  },
   "devDependencies": {
     "grunt": "~1.0.1",
     "grunt-chmod": "~1.1.1",
@@ -41,6 +44,25 @@
     "grunt-inline-alt": "~0.3.10",
     "grunt-jsdoc": "^2.1.0",
     "ink-docstrap": "^1.1.4",
-    "phantomjs-prebuilt": "^2.1.14"
+    "phantomjs-prebuilt": "^2.1.14",
+    "webpack": "^2.2.1"
+  },
+  "dependencies": {
+    "crypto-api": "^0.6.2",
+    "crypto-js": "^3.1.9-1",
+    "diff": "^3.2.0",
+    "escodegen": "^1.8.1",
+    "esmangle": "^1.0.1",
+    "esprima": "^3.1.3",
+    "google-code-prettify": "^1.0.5",
+    "jquery": "^3.1.1",
+    "jsbn": "^1.1.0",
+    "jsrsasign": "^7.1.0",
+    "moment": "^2.17.1",
+    "moment-timezone": "^0.5.11",
+    "sladex-blowfish": "^0.8.1",
+    "uas-parser": "^0.2.2",
+    "vkbeautify": "^0.99.1",
+    "zlibjs": "^0.2.0"
   }
 }