Nestoras Sdoukos authored Aug 28, 2024 and Vasilis Tsiligiannis committed Sep 27, 2024

Remove old custom logger and use the new GNURadio logger based on
spdlog. Also change GR_LOG_* with new version

Fixes #224

Signed-off-by: Nestoras Sdoukos <sdoukos@libre.space>