gplugin/gplugin

Look for python3-embed and if we don't find it fallback python3. This fixes and issue with python3.8
develop
2019-10-31, Gary Kramlich
caddff265a3b
Look for python3-embed and if we don't find it fallback python3. This fixes and issue with python3.8
export GPLUGIN_VERSION=@GPLUGIN_MAJOR_VERSION@.@GPLUGIN_MINOR_VERSION@.@GPLUGIN_MICRO_VERSION@