Add base distribution models

src/ocelot/model/__init__.py

@@ -0,0 +1,3 @@
+from .distribution.king62 import King62  # noqa: F401
+from .distribution.king64 import King64  # noqa: F401
+from .distribution.plummer import Plummer  # noqa: F401

src/ocelot/model/distribution/_base.py

@@ -0,0 +1,5 @@
+from abc import ABC
+
+
+class ClusterDistributionModel(ABC):
+    pass

src/ocelot/model/distribution/king62.py

@@ -0,0 +1,5 @@
+from ._base import ClusterDistributionModel
+
+
+class King62(ClusterDistributionModel):
+    pass

src/ocelot/model/distribution/king64.py

@@ -0,0 +1,5 @@
+from ._base import ClusterDistributionModel
+
+
+class King64(ClusterDistributionModel):
+    pass

src/ocelot/model/distribution/plummer.py

@@ -0,0 +1,5 @@
+from ._base import ClusterDistributionModel
+
+
+class Plummer(ClusterDistributionModel):
+    pass