Added missing ENTITIES="general" to the following tests;

xmlconf/sun/valid/ext01.xml
xmlconf/sun/valid/ext02.xml

Added missing ENTITIES="parameter" to the following tests;

xmlconf/sun/valid/not-sa01.xml  
xmlconf/sun/valid/not-sa02.xml  
xmlconf/sun/valid/not-sa03.xml  
xmlconf/sun/valid/not-sa04.xml  
xmlconf/sun/valid/notation01.xml  
xmlconf/sun/valid/optional.xml  
xmlconf/sun/valid/sa03.xml  
xmlconf/sun/valid/sa04.xml  
xmlconf/sun/valid/sa05.xml  
xmlconf/sun/valid/pe00.xml  
xmlconf/sun/valid/pe02.xml