public String fullyQualifiedTypeName(String subPath) {
        return fullyQualifiedTypeName(subPath, "");
    }
Returns the fully qualified type name of the current document. The 
specified sub-path will be added after the base package name and before 
the type name of the node. The sub-path should not contain either 
leading nor trailing dots.
<p>
Example:
<ul>
     <li>{@code com.speedment.example.employeesschema.EmployeesSchema}
     <li>{@code com.speedment.example.usertable.UserTable}
     <li>{@code com.speedment.example.usertable.firstname.Firstname}
</ul>
<p>
Note that this method is only meant to work with nodes at
{@code Table} or higher level in the hierarchy. It will return a
result for all documents located in a valid hierarchy, but the result 
might not be as intended.

@param subPath  A sub-path to be added at the end of the 'package'-part 
                of the qualified type name. This value can be 
                {@code null} and in that case an ordinary 
                {@code fullyQualifiedTypeName} will be returned.
@return         the fully qualified type name of the current document
@see
<a href="https://docs.oracle.com/javase/specs/jls/se8/html/jls-6.html#jls-6.5.5.2">
     Concerning fully qualified type names
</a>
generator-parent/generator-translator/src/main/java/com/speedment/generator/translator/TranslatorSupport.java