Add new configuration flag to kotlin-build-gradle-plugin

This flag is needed for auto-generation of run configurations
  for modularized tests which are used by FIR team

dependencies/kotlin-build-gradle-plugin/build.gradle.kts

@@ -4,7 +4,7 @@ plugins {
 }
 
 group = "org.jetbrains.kotlin"
-version = "0.0.25"
+version = "0.0.26"
 
 repositories {
     mavenCentral()

dependencies/kotlin-build-gradle-plugin/src/BuildProperties.kt

@@ -122,6 +122,8 @@ class KotlinBuildProperties(
     val rootProjectDir: File = propertiesProvider.rootProjectDir
 
     val isKotlinNativeEnabled: Boolean = getBoolean("kotlin.native.enabled")
+
+    val pathToKotlinModularizedTestData: String? = getOrNull("kotlin.fir.modularized.testdata") as String?
 }
 
 private const val extensionName = "kotlinBuildProperties"