feat: add missing types and resolvers

lib/new-admin/graphql/resolvers/rates.resolver.js

@@ -0,0 +1,21 @@
+const settingsLoader = require('../../../new-settings-loader')
+const forex = require('../../../forex')
+const plugins = require('../../../plugins')
+
+const resolvers = {
+  Query: {
+    cryptoRates: () =>
+      settingsLoader.loadLatest().then(settings => {
+        const pi = plugins(settings)
+        return pi.getRawRates().then(r => {
+          return {
+            withCommissions: pi.buildRates(r),
+            withoutCommissions: pi.buildRatesNoCommission(r)
+          }
+        })
+      }),
+    fiatRates: () => forex.getFiatRates()
+  }
+}
+
+module.exports = resolvers