Add HTTP PQC Example for Java 17

[JiriOndrusek]

fixes apache/camel-quarkus#8509

Adds a new Camel Quarkus example demonstrating quantum-resistant TLS authentication using hybrid
Chimera certificates (RSA + ML-DSA-65) on Java 17.

Key features:

• Hybrid certificates with classical RSA-2048 + post-quantum ML-DSA-65 (NIST FIPS 204) signatures
• Custom X509TrustManager validates both signatures during TLS handshake - invalid or RSA-only
  certificates are rejected before application code executes
• Java 17 compatible using BouncyCastle 1.83 PQC provider (application-level validation)
• Comprehensive visual documentation explaining PQC architecture and three implementation
  approaches
• Automated certificate generation with test coverage (JVM and native modes)

Implementation details:

• Uses X.509 standard extensions (OIDs 2.5.29.72-74) for alternative PQC signatures per ITU-T X.509
• Mutual TLS authentication (quarkus.http.ssl.client-auth=required) on /pqc/secure endpoint
• Both RSA and ML-DSA-65 signatures must be valid for TLS connection to succeed
• NIST-standardized ML-DSA-65 algorithm OID (2.16.840.1.101.3.4.3.18)

This provides a production-ready migration path to quantum-safe authentication on Java 17 while
maintaining backward compatibility with classical RSA systems. For Java 21+, native PQC TLS support
with hybrid cipher suites is recommended instead.

[oscerd]

From PQC perspective this is ok!

[JiriOndrusek]

From PQC perspective this is ok!

Thanks for confirmation!