Add reset to the repr for Rate (#1389)

Add the reset attribute to the repr for Rate, and add a test for good
measure.

Co-Authored-By: Jonathan Leitschuh <jonathan.leitschuh@gmail.com>

github/Rate.py

@@ -37,7 +37,11 @@ class Rate(github.GithubObject.NonCompletableGithubObject):
 
     def __repr__(self):
         return self.get__repr__(
-            {"limit": self._limit.value, "remaining": self._remaining.value}
+            {
+                "limit": self._limit.value,
+                "remaining": self._remaining.value,
+                "reset": self._reset.value,
+            }
         )
 
     @property

tests/RateLimiting.py

@@ -45,6 +45,10 @@ class RateLimiting(Framework.TestCase):
 
     def testGetRateLimit(self):
         rateLimit = self.g.get_rate_limit()
+        self.assertEqual(
+            repr(rateLimit.core),
+            "Rate(reset=2018-09-05 04:55:56, remaining=4929, limit=5000)",
+        )
         self.assertEqual(rateLimit.core.limit, 5000)
         self.assertEqual(rateLimit.core.remaining, 4929)
         self.assertEqual(rateLimit.core.reset, datetime.datetime(2018, 9, 5, 4, 55, 56))