Massive name changes to factory.

The changes make it clear what is a default implementation and
what implements base classes defined in pvData.h.

pvDataApp/factory/PVScalarArray.cpp

@@ -0,0 +1,27 @@
+/*PVScalarArray.cpp*/
+/**
+ * Copyright - See the COPYRIGHT that is included with this distribution.
+ * EPICS pvDataCPP is distributed subject to a Software License Agreement found
+ * in file LICENSE that is included with this distribution.
+ */
+#include <cstddef>
+#include <cstdlib>
+#include <string>
+#include <cstdio>
+#include "pvData.h"
+#include "factory.h"
+
+namespace epics { namespace pvData {
+
+    PVScalarArray::~PVScalarArray() {}
+
+    PVScalarArray::PVScalarArray(PVStructure *parent,
+        ScalarArrayConstPtr scalarArray)
+    : PVArray(parent,scalarArray) {}
+
+    ScalarArrayConstPtr PVScalarArray::getScalarArray() 
+    {
+       return (ScalarArrayConstPtr) PVField::getField();
+    }
+
+}}