Aktualisieren ReportNNAA.pdf, src/main_ActorCritic.py,...

Aktualisieren ReportNNAA.pdf, src/main_ActorCritic.py, src/main_ActorCriticVariant.py, src/main_ActorOnly.py, src/main_Critic.py, src/main_CrossEntropy.py, src/main_compute_sent_vecs.py, src/models.py, src/plot_learning_loss.py, src/plot_training_curves.py, src/plot_validation_curves.py, src/structures.py, src/test.py, src/utils.py, src/validate.py, src/validate_critic.py