Simplify plugin fixes

[laurentschoelens]

See this issue highsource/jaxb2-basics#115

Also this SO question https://stackoverflow.com/questions/72382188/isset-methods-not-generated-using-jaxb2-basics-simplify-plugin

Simplify plugin should respect if possible the globalBindings customizations

[laurentschoelens]

Both problems, same rootcause :
XJC calls this when (for example) createReferenceProperty : com.sun.tools.xjc.reader.xmlschema.bindinfo.BIProperty#wrapUp

The wrapUp function is responsible of determine FieldRenderer type, which is determine by the globalBindings properties