Faster startup time through lazy initialization

S3Mock starts up pretty fast already, but this can't hurt.

Author: afranken

server/src/main/resources/application.properties

@@ -28,3 +28,5 @@ com.adobe.testing.s3mock.region=us-east-1
 server.tomcat.max-swallow-size=10MB
 
 management.endpoints.web.discovery.enabled=false
+
+spring.main.lazy-initialization=true