align structure more with underlying chunk layout

src/decoders/data/data-tracker-status-chunk.ts

@@ -0,0 +1,20 @@
+/* eslint-disable no-case-declarations */
+
+import { Decoders } from '..';
+import { DataTrackerStatusChunk, DataTrackerStatusChunkData } from '../../models/data/data-tracker-status-chunk';
+
+export default (buffer: Uint8Array): DataTrackerStatusChunk => {
+  const chunk = Decoders.Chunk(buffer);
+
+  const view = new DataView(chunk.chunkData.buffer, chunk.chunkData.byteOffset, chunk.chunkData.byteLength);
+  const validity = view.getFloat32(0, true);
+
+  const data: DataTrackerStatusChunkData = {
+    validity,
+  };
+
+  return {
+    chunk,
+    data,
+  };
+};