RFR: 8275082: Update XML Security for Java to 2.3.0

[Valerie Peng]

On Wed, 1 Dec 2021 17:31:37 GMT, Weijun Wang <weijun at openjdk.org> wrote:

> Import Apache Santuario 2.3.0 without the secure validation changes since in OpenJDK we are using the `jdk.xml.dsig.secureValidationPolicy` security property for XML Signature secure validation protection.
> 
> Two commits are pushed:
> 
> - 2.3.0: Import 2.3.0 code changes
> - revert: revert the Santuario secure validation changes

The revert is done manually and covered by existing regression tests? May need to add a noreg-xxx label

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PR: https://git.openjdk.java.net/jdk/pull/6644