Fix #1152, split semanticdb-scalac into library and plugin artifacts
Fix #1152, split semanticdb-scalac into library and plugin artifacts

DavidDudson/scalameta,olafurpg/scalameta,scalameta/scalameta,olafurpg/scalameta,xeno-by/scalameta,olafurpg/scalameta,scalameta/scalameta,scalameta/scalameta,scalameta/scalameta,scalameta/scalameta,xeno-by/scalameta,MasseGuillaume/scalameta,MasseGuillaume/scalameta,DavidDudson/scalameta,xeno-by/scalameta,MasseGuillaume/scalameta