ABI compatible data types - C++

Implement ABI compatible data types to use mw:com cross languages, as requested in [ABI-Compatible Data Types](https://eclipse-score.github.io/score/main/features/communication/abi_compatible_data_types/index.html)

Rust implementation tracked via : https://github.com/eclipse-score/baselibs_rust/issues/6

Further step:
- create integration tests for C++/Rust interoperability testing
- the first idea was to do this in com repo as this is a place where two implementations meets. Later once no copybaar is alive, we can move that to baselibs probably.