Add support for ГОСТ Р 34.10 digital signatures

- Implemented the GostKeyValue class for handling public key parameters in ГОСТ Р 34.10 digital signatures.
- Created the GostSignedXml class to manage XML signatures using ГОСТ 34.10, including methods for computing and checking signatures.
- Developed the GostSignedXmlImpl class to encapsulate the signature computation logic and public key retrieval.
- Added specific key value classes for ГОСТ Р 34.10-2001, ГОСТ Р 34.10-2012/256, and ГОСТ Р 34.10-2012/512 to support different signature algorithms.
- Ensured compatibility with existing XML signature standards while integrating ГОСТ cryptography.

docs/19_TEST_SUITE_OVERVIEW.md

@@ -61,9 +61,12 @@ The script spins up MongoDB/Redis via Testcontainers and requires:
 
 Multiple suites (Concelier connectors, Excititor worker/WebService, Scheduler)
 fall back to [Mongo2Go](https://github.com/Mongo2Go/Mongo2Go) when a developer
-does not have a local `mongod` listening on `127.0.0.1:27017`.  Modern distros
-ship OpenSSL 3 by default, so you **must** expose the legacy OpenSSL 1.1
-libraries that the embedded `mongod` requires:
+does not have a local `mongod` listening on `127.0.0.1:27017`.  **This is a
+test-only dependency**: production/dev runtime MongoDB always runs inside the
+compose/k8s network using the standard StellaOps cryptography stack.  Modern
+distros ship OpenSSL 3 by default, so when Mongo2Go starts its embedded
+`mongod` you **must** expose the legacy OpenSSL 1.1 libraries that binary
+expects:
 
 1. From the repo root, export the provided binaries before running any tests: