refactor: added three D selector

Author: doctrino

cognite_toolkit/_cdf_tk/storageio/selectors/_three_d.py

@@ -0,0 +1,18 @@
+from typing import Literal
+
+from ._base import DataSelector
+
+
+class ThreeDSelector(DataSelector):
+    type: Literal["3D"] = "3D"
+    kind: Literal["3D"] = "3D"
+    published: bool | None = None
+
+    @property
+    def group(self) -> str:
+        return "3DModels"
+
+    def __str__(self) -> str:
+        if self.published is not None:
+            return f"3DModels_published_{self.published}"
+        return "3DModels_all"