Support for gRPC

[ghost]

Teams continues to evolve and adopt modern technologies for efficient cross-service communication. In recent years, gRPC has gained significant traction as a high-performance, language-agnostic framework for building distributed systems.

In that regard, I would like to propose to incorporate gRPC support in APISimulator. This enhancement will align APISimulator with industry best practices (and trends 😉), allowing to efficiently develop, test, and debug services that rely on gRPC endpoints.

Thank you for considering this!