Add modules metadata and metadata.jvm

core/metadata/build.gradle.kts

@@ -0,0 +1,26 @@
+import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
+
+apply { plugin("kotlin") }
+
+jvmTarget = "1.6"
+javaHome = rootProject.extra["JDK_16"] as String
+
+dependencies {
+    compile(protobufLite())
+    compile(project(":kotlin-stdlib"))
+}
+
+sourceSets {
+    "main" { projectDefault() }
+    "test" {}
+}
+
+tasks.withType<JavaCompile> {
+    dependsOn(protobufLiteTask)
+    sourceCompatibility = "1.6"
+    targetCompatibility = "1.6"
+}
+
+tasks.withType<KotlinCompile> {
+    dependsOn(protobufLiteTask)
+}