Add overridable method "setup" for defining properties

libraries/examples/scripting/jvm-maven-deps/script/src/org/jetbrains/kotlin/script/examples/jvm/resolve/maven/scriptDef.kt

@@ -25,7 +25,7 @@ abstract class MyScriptWithMavenDeps {
 }
 
 object MyScriptProperties : ScriptingProperties() {
-    init {
+    override fun setup() {
         include(jvmJavaHomeScriptingProperties)
         scriptDefinition {
             defaultImports<DependsOn>()