Create utils module, move Log class there

BuildConfig class is now only created in the utils module

client/android/build.gradle.kts

@@ -16,7 +16,6 @@ android {
     namespace = "org.amnezia.vpn"
 
     buildFeatures {
-        buildConfig = true
         viewBinding = true
     }
 
@@ -81,6 +80,7 @@ android {
 dependencies {
     implementation(fileTree(mapOf("dir" to "libs", "include" to listOf("*.jar", "*.aar"))))
     implementation(project(":qt"))
+    implementation(project(":utils"))
     implementation(libs.androidx.core)
     implementation(libs.androidx.appcompat)
     implementation(libs.androidx.security.crypto)

client/android/settings.gradle.kts

@@ -34,6 +34,7 @@ rootProject.name = "AmneziaVPN"
 rootProject.buildFileName = "build.gradle.kts"
 
 include(":qt")
+include(":utils")
 
 // get values from gradle or local properties
 val androidBuildToolsVersion: String by gradleProperties

client/android/utils/build.gradle.kts

@@ -0,0 +1,17 @@
+plugins {
+    id(libs.plugins.android.library.get().pluginId)
+    id(libs.plugins.kotlin.android.get().pluginId)
+}
+
+kotlin {
+    jvmToolchain(17)
+}
+
+android {
+    namespace = "org.amnezia.vpn"
+
+    buildFeatures {
+        // add BuildConfig class
+        buildConfig = true
+    }
+}