SigMF data format handling library

 A header-only C++ library for working with SigMF metadata.
 To use libsigmf, your application needs to #include <sigmf.h>
 and link to libflatbuffers.so.
 .
 The Signal Metadata Format (SigMF) specifies a way to describe sets
 of recorded digital signal samples with metadata written in
 JSON. SigMF can be used to describe general information about a
 collection of samples, the characteristics of the system that
 generated the samples, features of signals themselves, and the
 relationship between different recordings.