added domain shift envs and adjusted reload_agent.py

environments/domain_adaption/test.py

@@ -0,0 +1,24 @@
+import gym
+
+env_dict = gym.envs.registration.registry.env_specs.copy()
+
+
+for env in env_dict:
+    if 'CarRacingColor3-v0' in env:
+        print("Remove {} from registry".format(env))
+        del gym.envs.registration.registry.env_specs[env]
+#from environments.domain_adaption.natural_rl_environment import natural_env
+import environments.domain_adaption.car_racing_variants
+
+
+env = gym.make('CarRacingColor3-v0')
+env.seed(666)
+
+while True:
+    ob = env.reset()
+    done = False
+    step = 0
+    while not done and 0 <= step <= 500:
+        ob, reward, done, _ = env.step(env.action_space.sample())
+        step += 1
+        env.render()