add core lib for tests

build.gradle.kts

@@ -1,5 +1,5 @@
 // Top-level build file where you can add configuration options common to all sub-projects/modules.
 plugins {
-    androidApplication version Version.gradle apply false
-    kotlinJvm version Version.Kotlin.language apply false
-}
+    androidLibrary version Version.gradle apply false
+    kotlinAndroid version Version.Kotlin.language apply false
+}