benchmarks: add date/time test cases (#429)

Author: ivan-tymoshenko

benchmark/bench.js

@@ -63,6 +63,14 @@ const benchmarks = [
     },
     input: 42
   },
+  {
+    name: 'formatted date-time',
+    schema: {
+      type: 'string',
+      format: 'date-time'
+    },
+    input: new Date()
+  },
   {
     name: 'formatted date',
     schema: {
@@ -71,6 +79,14 @@ const benchmarks = [
     },
     input: new Date()
   },
+  {
+    name: 'formatted time',
+    schema: {
+      type: 'string',
+      format: 'time'
+    },
+    input: new Date()
+  },
   {
     name: 'short array of numbers',
     schema: {