Allow two star role-name in web-fragment.xml as described in servlet spec

[paulpunk]

I use a dependency with a web-fragment.xml like this

<auth-constraint>
   <role-name>**</role-name>
</auth-constraint>

This causes all calls to the servlets to be denied.

It would work with <role-name>*</role-name>
According to the servlet specification section 13.8, both "*" and "**" should be fine. This pr fixes the issue (firstly i thought also other parts of undertow would have to be changed, but this change alone is sufficient), i tried it out locally.

[sberyozkin]

@stuartwdouglas Can you please check this PR ?

[quarkus-bot]

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