support isinf; epicsIsNAN=>isnan; add test for epicsMath

src/libCom/test/epicsMathTestMain.cpp

@@ -0,0 +1,14 @@
+/* epicsMathTestMain.cpp
+ *
+ *      Author  Marty Kraimer
+ */
+
+extern "C" {
+void epicsMathTest ( void );
+}
+
+int main ( int  , char *[] )
+{
+    epicsMathTest ();
+    return 0;
+}