Add Main class for game engine initialization and remove BootstrapTest

src/test/java/de/extio/game_engine/BootstrapTest.java

@@ -1,42 +0,0 @@
-package de.extio.game_engine;
-
-import java.util.function.Consumer;
-
-import org.junit.jupiter.api.Test;
-import org.springframework.boot.SpringBootConfiguration;
-import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
-import org.springframework.boot.test.context.SpringBootTest;
-import org.springframework.context.annotation.Bean;
-import org.springframework.context.annotation.ComponentScan;
-import org.springframework.test.context.ContextConfiguration;
-
-@SpringBootTest
-@ContextConfiguration(classes = BootstrapTest.TestConfig.class)
-public class BootstrapTest {
-
-	static {
-        System.setProperty("java.awt.headless", "false");
-    }
-
-	@SpringBootConfiguration
-    @EnableAutoConfiguration
-	@ComponentScan(basePackages = "de.extio.game_engine")
-    static class TestConfig {
-
-		@Bean(name = "gameEngineEventConsumer")
-		public Consumer<Object> eventConsumer() {
-			return event -> {
-			};
-		}
-    }
-
-	@Test
-	void contextLoads() {
-		try {
-			Thread.sleep(100000);
-		} catch (final InterruptedException e) {
-			Thread.currentThread().interrupt();
-		}
-	}
-
-}