Ring Buffer Dependency Not Compiling with Atomic Code

[ttchalakov]

Investigating this issue here: https://github.com/MaJerle/lwrb/issues/35

Ring Buffer dependency for Arduino motor driver compiles but without atomic operation.

[ttchalakov]

Closing issue following discussion from linked issue. Summary of what was learned and decided:

1. lwrb (Light Weight Ring Buffer) is written in C and our C++ project can compile the code without atomic operations enabled, but it can not with atomic operations enabled.
2. Compilation with atomics does not work because the C header uses _Atomic which is a C keyword and C++ binaries can not link to C specific feature.
3. While in theory have atomic access to the lwrb is faster than using a mutex, our current implementation will implement thread safety using a mutex for the time being.
4. The author of lwrb has expressed interest in writing a C++ compatible version of lwrb. It would also be an option for our team to help contribute if anyone is interested because the C code will just need to be rewritten with the <atomic> C++ library instead of stdatomic C library.