Add indication if LightPcapNG backend is compiled with ZSTD compression support. #1973
Description
The backend for parsing / crafting PcapNG files can be compiled with integrated ZST compression support. Currently while we do support that, we have no way to indicate if the backend is compiled with that support enabled after build.
As the backend is baked into the library, it would be nice to have a compile time constant that indicates if Zst support is available to enable early detection and error reporting if compression options are used without backend support.