Add Kotlinx Kover test coverage calculator (#199)

* Add Kotlin Kover

* Add AuthKtorConfiguration tests

* Ensure at least 25% code coverage

* Exclude Previews from code coverage

* Specify Kover report path for SonarQube

* Add Kover xml report task

* Extract sonar to a separate step

* Add some exclusions and minimum coverage

* Exclude Hilt-generated classes

* Add shopping list view model tests

* Reduce the coverage requirement

build-logic/convention/src/main/kotlin/AndroidApplicationConventionPlugin.kt

@@ -12,6 +12,7 @@ class AndroidApplicationConventionPlugin : Plugin<Project> {
             with(pluginManager) {
                 apply("com.android.application")
                 apply("org.jetbrains.kotlin.android")
+                apply("org.jetbrains.kotlinx.kover")
             }
 
             extensions.configure<BaseAppModuleExtension> {