Changes hydra presentation

hydra_flash/conf/experiment/hymenoptera.yaml

+# @package _global_
+defaults:
+  - _self_
+  - /server: local
+  - /preprocess: hymenoptera
+  - /datamodule: hymenoptera
+  - /model: resnet18
+  - /datamodule@predict_datamodule: hymenoptera_test
+
+trainer:
+  _target_: flash.Trainer
+  max_epochs: 3
+  gpus: 1

hydra_flash/conf/preprocess/download.yaml

+_target_: flash.core.data.utils.download_data
+path: ${path}

hydra_flash/conf/preprocess/hymenoptera.yaml

+defaults:
+  - download
+
+url: "https://pl-flash-data.s3.amazonaws.com/hymenoptera_data.zip"