Fix specification for data property of Dataset types and nwbtest function (#757)

* Update Dataset.m

* Update nwbtest.m

Author: ehennestad

+file/Dataset.m

@@ -155,6 +155,7 @@
                 % the type should be empty, and we add a custom doc.
                 objCopy = obj;
                 objCopy.name = 'data';
+                objCopy.isConstrainedSet = false;
                 objCopy.type = ''; % Reset type, as this now represents a property
                 objCopy.doc = sprintf('Data property for dataset class (%s)', obj.type);
                 props('data') = objCopy;

nwbtest.m

@@ -41,6 +41,7 @@
     try
         parser = inputParser;
         parser.KeepUnmatched = true;
+        parser.PartialMatching = false;
         parser.addParameter('Verbosity', 1);
         parser.addParameter('Selector', [])
         parser.addParameter('Namespace', 'tests')