add tests and make several replacements/improvements

startup/launcher/src/commonMain/kotlin/Start.kt

@@ -0,0 +1,24 @@
+package dev.inmo.micro_utils.startup.launcher
+
+import dev.inmo.kslog.common.i
+import kotlinx.serialization.json.JsonObject
+import org.koin.core.KoinApplication
+import org.koin.core.context.GlobalContext
+import org.koin.dsl.module
+
+suspend fun start(rawConfig: JsonObject) {
+    with(StartupLauncherPlugin) {
+        logger.i("Start initialization")
+        val koinApp = KoinApplication.init()
+        koinApp.modules(
+            module {
+                setupDI(rawConfig)
+            }
+        )
+        logger.i("Modules loaded")
+        GlobalContext.startKoin(koinApp)
+        logger.i("Koin started")
+        startPlugin(koinApp.koin)
+        logger.i("App has been setup")
+    }
+}