move things we need in octopus to top level simulariumio package (#160)

Author: ascibisz

simulariumio/__init__.py

@@ -22,9 +22,13 @@
     ScatterPlotData,
     TrajectoryData,
     UnitData,
+    FrameData,
+    SimulariumFileData,
+    JsonData,
+    BinaryData,
 )
 # DO NOT ISORT DISPLAY_TYPE, CAUSES CIRCULAR DEP
-from .constants import DISPLAY_TYPE  # noqa: F401
+from .constants import BINARY_SETTINGS, DISPLAY_TYPE  # noqa: F401
 from .file_converter import FileConverter  # noqa: F401
 from .trajectory_converter import TrajectoryConverter  # noqa: F401
 from .writers import BinaryWriter, JsonWriter  # noqa: F401