Rework buildSrc and remove usage of subprojects

buildSrc/src/main/kotlin/mihon/buildlogic/AndroidConfig.kt

@@ -0,0 +1,11 @@
+package mihon.buildlogic
+
+import org.gradle.api.JavaVersion as GradleJavaVersion
+
+object AndroidConfig {
+    const val COMPILE_SDK = 34
+    const val TARGET_SDK = 34
+    const val MIN_SDK = 26
+    const val NDK = "26.1.10909125"
+    val JavaVersion = GradleJavaVersion.VERSION_17
+}