Build: Add maven publication for Kotlin plugin artifacts

plugins/kapt3/kapt3-idea/build.gradle.kts

@@ -6,11 +6,12 @@ plugins {
 
 dependencies {
     compile(kotlinStdlib())
-    compile(project(":compiler:frontend"))
-    compile(project(":idea")) { isTransitive = false }
-    compile(project(":idea:kotlin-gradle-tooling"))
-    compile(project(":idea:idea-core"))
-    compile(project(":idea:idea-gradle"))
+
+    compileOnly(project(":compiler:frontend"))
+    compileOnly(project(":idea")) { isTransitive = false }
+    compileOnly(project(":idea:kotlin-gradle-tooling"))
+    compileOnly(project(":idea:idea-core"))
+    compileOnly(project(":idea:idea-gradle"))
     compileOnly(intellijDep())
     Platform[192].orHigher {
         compileOnly(intellijPluginDep("java"))
@@ -25,3 +26,5 @@ sourceSets {
 }
 
 runtimeJar()
+
+apply(from = "$rootDir/gradle/kotlinPluginPublication.gradle.kts")