mod_rest: Add configuration of which stanzas to route to callback Makes it simpler to build APIs that only handle a certain kind of stanzas, letting them be handled by the unhandled stanza handler instead of having to write code to ignore certain kinds of stanzas.

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labels:
- Stage-Alpha
summary: "XEP-0388: Extensible SASL Profile"
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Experimental implementation of [XEP-0388: Extensible SASL Profile]