Add water-http framework

[HassanSharara]

Description

Adding water-http, a high-performance Rust web framework.

Performance Highlights

• Uses zero-copy serialization with sonic_rs
• Pre-loads cache during setup for optimal performance
• Efficient round-robin connection pooling
• Thread-local RNG for random ID generation

Framework Information

• Language: Rust
• Platform: water-http

Files Included

• Source code for cached-queries benchmark
• Dockerfile for containerized testing
• benchmark_config.json with test configuration
• README.md with framework information

Notes

• All required headers (Content-Type, Server, Date) are set
• Query parameter properly bounded between 1-500