[BREAKING] Rename modules (#511)

* Re-organize and deprecations

* nam.models.base to nam.train.lightning_module
* Remove recurrent.LSTMCore

* Refactor lightning module tests to new file

* Black

* typo

* nam.models._base to nam.models.base

Author: sdatkinson

nam/models/__init__.py

@@ -6,10 +6,10 @@
 NAM's neural networks
 """
 
-from . import _base  # noqa F401
+from . import base  # noqa F401
 from . import exportable  # noqa F401
 from . import losses  # noqa F401
-from . import wavenet  # noqa F401
-from .base import Model  # noqa F401
-from .linear import Linear  # noqa F401
 from .conv_net import ConvNet  # noqa F401
+from .linear import Linear  # noqa F401
+from .recurrent import LSTM  # noqa F401
+from .wavenet import WaveNet  # noqa F401