Setup resolvers for staging repo in plugin.sbt

Author: WojciechMazur

project/plugins.sbt

@@ -1,2 +1,6 @@
 // Update during release procedure to provide access to staged, but not published artifacts
+val StagingRepoIds = 1147 to 1149
+val StagingRepoNames = StagingRepoIds.map(id => s"orgscala-native-$id").toSeq
+resolvers ++= StagingRepoNames.flatMap(Resolver.sonatypeOssRepos(_))
+
 addSbtPlugin("org.scala-native" % "sbt-scala-native" % "0.5.0")