feat: add mock wallet scoring

lib/plugins/wallet-scoring/mock-scoring/mock-scoring.js

@@ -0,0 +1,15 @@
+const NAME = 'FakeScoring'
+
+function rateWallet (account, address) {
+  return new Promise((resolve, _) => {
+    setTimeout(() => {
+      console.log('[WALLET-SCORING] DEBUG: Mock scoring rating wallet address %s', address)
+      return resolve({ address, rating: 5 })
+    }, 100)
+  })
+}
+
+module.exports = {
+  NAME,
+  rateWallet
+}