Actually test compound references

Was originally missing any validation outside of IO.
Now verifies that the read-in data is the same as the written.

Minor change to RegionViews and ObjectViews using arrays instead of
cell arrays.

+io/getRefData.m

@@ -9,8 +9,8 @@
         did = H5D.open(fid, refpaths{i});
         sid = H5D.get_space(did);
         %by default, we use block mode.
-        regionShapes = ref.region;
-        for j = 1:length(ref.region)
+        regionShapes = ref(i).region;
+        for j = 1:length(regionShapes)
             regionShapes{j} = io.space.findShapes(regionShapes{j});
         end
         refspace(i) = io.space.getReadSpace(regionShapes, sid);

+io/parseCompound.m

@@ -36,7 +36,7 @@
             r = refdata(:,k);
             reflist{k} = io.parseReference(did, reftids{j}, r);
         end
-        data.(rpname) = reflist;
+        data.(rpname) = [reflist{:}] .';
     end
 end
 

+tests/+unit/dataStubTest.m

@@ -85,15 +85,16 @@ function testObjectCopy(testCase)
 rcPath = '/acquisition/rc';
 rcDataPath = [rcPath '/data'];
 rcRef = types.cs.CompoundRefData('data', table(...
-    rand(),...
-    rand(),...
-    types.untyped.ObjectView(rcPath),...
-    types.untyped.RegionView(rcDataPath, 1:2, 99:100),...
+    rand(2, 1),...
+    rand(2, 1),...
+    [types.untyped.ObjectView(rcPath); types.untyped.ObjectView(rcPath)],...
+    [types.untyped.RegionView(rcDataPath, 1:2, 99:100); types.untyped.RegionView(rcDataPath, 5:6, 88:89)],...
     'VariableNames', {'a', 'b', 'objref', 'regref'}));
 
 nwb.acquisition.set('rc', rc);
 nwb.analysis.set('rcRef', rcRef);
 nwbExport(nwb, 'original.nwb');
-nwb = nwbRead('original.nwb');
-nwbExport(nwb, 'new.nwb');
+nwbNew = nwbRead('original.nwb');
+tests.util.verifyContainerEqual(testCase, nwbNew, nwb);
+nwbExport(nwbNew, 'new.nwb');
 end