Refactor clash of code module and add get_question, play_test_cases and submit

Author: takos22

codingame/clash_of_code/__init__.py

@@ -0,0 +1,13 @@
+from .clash_of_code import ClashOfCode, Solution, TestCaseResult
+from .player import Player
+from .question import Contribution, Question, TestCase
+
+__all__ = (
+    "ClashOfCode",
+    "Contribution",
+    "Player",
+    "Question",
+    "TestCase",
+    "TestCaseResult",
+    "Solution",
+)