[maliput-sys] [META] Bindings for C++ maliput package

[francocipollone]

Summary

Goes on top of #3

Create bindings for maliput api

To Do

• Create bindings FFI for maliput::math #11
• FFI bindings for maliput::api #17
• FFI bindings for maliput::api::rules #92
• Create FFI bindings for maliput::plugin
• Create FFI bindings for maliput::utility

Guidelines

• Maliput API cpp uses extensively std::map and std::optional. For first iteration focus on creating the most trivial bindings. We will tackle those particular cases later on. Reference: https://cxx.rs/bindings.html
• Namespace
  • The bindings should be located under maliput_sys::<namespace>::ffi:
    • For example: maliput_sys::api::ffi::RoadNetwork or maliput_sys::math::ffi::Vector3