Runsettings now uses preview CLR

Author: josesimoes

.runsettings

@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
+<?xml version="1.0" encoding="utf-8"?>
 <RunSettings>
 	<!-- Configurations that affect the Test Framework -->
 	<RunConfiguration>
@@ -13,5 +13,6 @@
 	<nanoFrameworkAdapter>
 		<Logging>Detailed</Logging>
 		<IsRealHardware>False</IsRealHardware>
-	</nanoFrameworkAdapter>
+        <UsePreviewClr>True</UsePreviewClr>
+    </nanoFrameworkAdapter>
 </RunSettings>