add attach source config to maven source plugin
add attach source config to maven source plugin

annacarol/GeoGig,annacarol/GeoGig,annacarol/GeoGig,markles/GeoGit,boundlessgeo/GeoGig,boundlessgeo/GeoGig,markles/GeoGit,rouault/GeoGit,jodygarnett/GeoGit,rouault/GeoGit,markles/GeoGit,rouault/GeoGit,markles/GeoGit,boundlessgeo/GeoGig,rouault/GeoGit,markles/GeoGit