add tests and make several replacements/improvements

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

@@ -0,0 +1,13 @@
+package dev.inmo.micro_utils.startup.launcher
+
+import dev.inmo.kslog.common.i
+import dev.inmo.kslog.common.logger
+import dev.inmo.micro_utils.startup.plugin.ServerPlugin
+import org.koin.core.Koin
+
+object HelloWorldPlugin : ServerPlugin {
+    override suspend fun startPlugin(koin: Koin) {
+        super.startPlugin(koin)
+        logger.i("Hello world")
+    }
+}

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")
+    }
+}

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

@@ -14,7 +14,7 @@ import org.koin.core.Koin
 import org.koin.core.module.Module
 import org.koin.dsl.module
 
-object StartupLauncher : ServerPlugin {
+object StartupLauncherPlugin : ServerPlugin {
     internal val logger = taggedLogger(this)
     override fun Module.setupDI(config: JsonObject) {
         val pluginsConfig = defaultJson.decodeFromJsonElement(Config.serializer(), config)