Allow toggling XML External Entity support for XmlParse, isXml

I have added support for the ACF syntax for passing xmlFeatures directives into isXml() and xmlParse()

All to make life easier since we locked down Lucee to be secure by default

If you need these overrides for other functions, just use xmlParse() and pass the result into xmlSearch() etc

Added to and, still on 5.3? it’s time to upgrade

Examples in the test cases

docker images for are building now

just bumping this up, these per use overrides are available in

TryCF is now running, however, support for overriding xmlFeatures has been disabled via lucee.xmlfeatures.override.disable=true so isXml() will still return false, xmlParse with throw an error

//trycf has lucee.xmlfeatures.override.disable=true set

str= '<?xml version="1.0" encoding="ISO-8859-1"?>
			<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN" "">
dump(isXml(str)); // only returns boolean

dump(isXml(str, {
    "secure": true,
	"disallowDoctypeDecl": true,
	"externalGeneralEntities": false
})); // xmlfeatures override ignored


try {
    dump( xmlParse( str, false, {
		"secure": true,
		"disallowDoctypeDecl": true,
		"externalGeneralEntities": false
	})); // xmlfeatures override ignored
} catch(e){