RFR: 8255255: Update Apache Santuario (XML Signature) to version 2.2.1 [v8]

[Weijun Wang]

> This is a multi-commits PR that upgrades xmldsig to be equivalent to Santuario 2.2.0.
> 
> The first step is an auto-import. The JDK implementation is removed first and Santuario code are imported. Some unrelated files (Ex: encryption) are removed, and package names are renamed to be internal. There are also some bulk changes on company name, comment style, and white spaces.
> 
> Next steps are patches applied by JDK. Some are old patches before the last import. Some are new.
> 
> Several tests need to be updated because of internal method signature changes.

Weijun Wang has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains 15 additional commits since the last revision:

 - Merge branch 'master' into 8255255
 - reapply 8259535: ECDSA SignatureValue do not always have the specified length
 - No more newInstance calls
 - Reapply 8255559: Leak File Descriptors Because of ResolverLocalFilesystem#engineResolveURI()
 - Fix test failures
 - Supporting named RSASSA-PSS without parameters
 - Reapply 8008744: Rework part of fix for JDK-6741606
 - Reapply 8151893: Add security property to configure XML Signature secure validation mode
   
   Reapply 8140353: Improve signature checking
 - Reapply Reapply 8042967: Add variant of DSA Signature algorithms that do not ASN.1 encode the signature bytes
 - Reapply 8038913: Bolster XML support (Init.java part)
 - ... and 5 more: https://git.openjdk.java.net/jdk/compare/ce7eb475...60496847

-------------

Changes:
  - all: https://git.openjdk.java.net/jdk/pull/1206/files
  - new: https://git.openjdk.java.net/jdk/pull/1206/files/24fb59fe..60496847

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=1206&range=07
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=1206&range=06-07

  Stats: 6713 lines in 254 files changed: 2727 ins; 2527 del; 1459 mod
  Patch: https://git.openjdk.java.net/jdk/pull/1206.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/1206/head:pull/1206

PR: https://git.openjdk.java.net/jdk/pull/1206