devel/reflect-cpp: [NEW PORT] C++-20 library for fast serialization, deserialization and validation

[alven]

Summary

reflect-cpp is a C++-20 library for fast serialization,
deserialization and validation using reflection, similar to pydantic
in Python, serde in Rust, encoding in Go or aeson in Haskell.

WWW: https://rfl.getml.com/

Test Plan

For every {amd64, i386} × {14.3, 13.5}:

• Successful poudriere testport

[alven]

Update maintainer email

[yuri]

Approved.

Thanks,
Yuri