refactor/support multiple discord guilds with 1 nitrado server each + better handling for NitradoAPI

util/Cryptic.js

@@ -0,0 +1,19 @@
+const crypto = require('crypto');
+
+module.exports = {
+  encrypt: (data, EncryptionMethod, Key, EncryptionIV) => {
+    const cipher = crypto.createCipheriv(EncryptionMethod, Key, EncryptionIV)
+    return Buffer.from(
+      cipher.update(data, 'utf8', 'hex') + cipher.final('hex')
+    ).toString('base64') // Encrypts data and converts to hex and base64
+  },
+
+  decrypt: (data, EncryptionMethod, Key, EncryptionIV) => {
+    const buff = Buffer.from(data, 'base64')
+    const decipher = crypto.createDecipheriv(EncryptionMethod, Key, EncryptionIV)
+    return (
+      decipher.update(buff.toString('utf8'), 'hex', 'utf8') +
+      decipher.final('utf8')
+    ) // Decrypts data and converts to utf8
+  }
+}