Adapt base_ac.py and utils.py to be compatible with refactored environment

studies/marl_adapted.py

@@ -0,0 +1,15 @@
+from pathlib import Path
+
+from marl_factory_grid.algorithms.marl.iac import LoopIAC
+from marl_factory_grid.algorithms.utils import load_yaml_file
+
+if __name__ == '__main__':
+    cfg_path = Path('../marl_factory_grid/algorithms/marl/example_config.yaml')
+
+    cfg = load_yaml_file(cfg_path)
+
+    print("Training phase")
+    agent = LoopIAC(cfg)
+    agent.train_loop()
+    print("Evaluation phase")
+    agent.eval_loop(10)