Enable metadata publishing for new MPP and consumption from source sets

* Add configurations for consuming source sets metadata (extending the
  source set's dependency configurations). These configurations will be
  used by the IDE to pick up the dependencies metadata.

* Remove the universal preset from the default presets, create a
  metadata target by default for compiling and publishing the metadata
  of `commonMain` (in the future, we will publish and consume the
  metadata of the other source sets as well).

* Make the classpath configurations of common modules consume the
  metadata and thus ensure compatibility of 1.2.x MPP with the new MPP
  model.

libraries/tools/kotlin-gradle-plugin-api/src/main/kotlin/org/jetbrains/kotlin/gradle/plugin/source/KotlinSourceSet.kt

@@ -23,6 +23,20 @@ interface KotlinSourceSet : Named, HasKotlinDependencies {
     fun dependsOn(other: KotlinSourceSet)
     val dependsOn: Set<KotlinSourceSet>
 
+    val apiMetadataConfigurationName: String
+    val implementationMetadataConfigurationName: String
+    val compileOnlyMetadataConfigurationName: String
+    val runtimeOnlyMetadataConfigurationName: String
+
+    override val relatedConfigurationNames: List<String>
+        get() = super.relatedConfigurationNames +
+                listOf(
+                    apiMetadataConfigurationName,
+                    implementationMetadataConfigurationName,
+                    compileOnlyMetadataConfigurationName,
+                    runtimeOnlyMetadataConfigurationName
+                )
+
     companion object {
         const val COMMON_MAIN_SOURCE_SET_NAME = "commonMain"
         const val COMMON_TEST_SOURCE_SET_NAME = "commonTest"