namespace breakage occurred without std namespace -
somewhere in the depths of json headers it uses begin / end without std:: namespace
this seemed to fix everything
(when building both libsigmf and inspectrum using system nlohmann-json3 and and flatbuffers on Ubuntu 21.04)
would recommend merging this fix unless the broad namespace upsets someone
namespace breakage occurred without std namespace - somewhere in the depths of json headers it uses begin / end without std:: namespace this seemed to fix everything (when building both libsigmf and inspectrum using system nlohmann-json3 and and flatbuffers on Ubuntu 21.04) would recommend merging this fix unless the broad namespace upsets someone