add python3-marshmallow recipe#462

HerrMuellerluedenscheid wants to merge 1 commit intoopenembedded:masteropenembedded/meta-openembedded:masterfrom

HerrMuellerluedenscheid:feature/python3-marshmallowHerrMuellerluedenscheid/meta-openembedded:feature/python3-marshmallowCopy head branch name to clipboard