Fixed: Support non-breaking spaces in numeric strings (OFBIZ-13168)

Fixes an "import java.math.BigDecimal;" missing in ObjectType.java

framework/base/src/main/java/org/apache/ofbiz/base/util/ObjectType.java

@@ -20,6 +20,7 @@
 
 import java.io.Serializable;
 import java.lang.reflect.InvocationTargetException;
+import java.math.BigDecimal;
 import java.util.Collection;
 import java.util.HashMap;
 import java.util.List;