Build: Add build cache user and password properties to BuildProperties

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

@@ -4,7 +4,7 @@ plugins {
 }
 
 group = "org.jetbrains.kotlin"
-version = "0.0.6"
+version = "0.0.7"
 
 repositories {
     mavenCentral()

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

@@ -92,6 +92,10 @@ class KotlinBuildProperties(
     val localBuildCacheEnabled: Boolean = getBoolean("kotlin.build.cache.local.enabled", !isTeamcityBuild)
 
     val buildScanServer: String? = get("kotlin.build.scan.url") as String?
+
+    val buildCacheUser: String? = get("kotlin.build.cache.user") as String?
+
+    val buildCachePassword: String? = get("kotlin.build.cache.password") as String?
 }
 
 private const val extensionName = "kotlinBuildProperties"