fixed test in deck and added hand

test

tests/test_hand.py

@@ -0,0 +1,12 @@
+import pytest
+
+from pyjack.hand import Hand
+
+@pytest.fixture
+def default_hand():
+    my_hand = Hand()
+    return my_hand
+
+
+def test_adding_card_to_hand(default_hand):
+    default_hand.add_card("diamonds","2")