action encoder configs

config/ppo_transfer/CrawlerStatic.yaml

       num_epoch: 3
       learning_rate_schedule: constant
       encoder_layers: 3
+      action_layers: 2
+      action_feature_size: 128
       reuse_encoder: true
       in_epoch_alter: false
       use_op_buffer: false

config/ppo_transfer/OldCrawlerStatic.yaml

       num_epoch: 3
       learning_rate_schedule: constant
       encoder_layers: 3
+      action_layers: 2
+      action_feature_size: 128
       reuse_encoder: true
       in_epoch_alter: false
       use_op_buffer: false
       separate_value_train: true
       train_model: false
       load_model: true
+      train_action: false
+      load_action: true
       train_policy: true
       load_policy: false
       train_value: true