Change the directory structure to match our modules (#1451)

moshi-kotlin/build.gradle.kts

@@ -0,0 +1,29 @@
+import com.vanniktech.maven.publish.JavadocJar.Javadoc
+import com.vanniktech.maven.publish.KotlinJvm
+import com.vanniktech.maven.publish.MavenPublishBaseExtension
+import org.gradle.jvm.tasks.Jar
+
+plugins {
+  kotlin("jvm")
+  id("com.vanniktech.maven.publish.base")
+  id("org.jetbrains.dokka")
+}
+
+dependencies {
+  api(project(":moshi"))
+  api(kotlin("reflect"))
+
+  testImplementation(kotlin("test"))
+  testImplementation(libs.junit)
+  testImplementation(libs.truth)
+}
+
+tasks.withType<Jar>().configureEach {
+  manifest {
+    attributes("Automatic-Module-Name" to "com.squareup.moshi.kotlin")
+  }
+}
+
+configure<MavenPublishBaseExtension> {
+  configure(KotlinJvm(javadocJar = Javadoc()))
+}