SpringDoc OpenAPI base information configuration

OpenAPIConfiguration.java

@OpenAPIDefinition(
  info = @Info(
  title = "API Roundtrip Demo (viadee.de)",
  description = "An API showcase demonstrating how to automatically generate an openapi spec and client based on this.",
  version = "0.1.0",
  contact = @Contact(
    name = "Cloud @viadee",
    url = "https://www.viadee.de",
    email = "[email protected]"),
  license = @License(
    name = "BSD 3-Clause License",
    url = "https://github.com/viadee/api-roundtrip-spring-boot/blob/main/LICENSE")),
    servers = @Server(url = "http://localhost:8080"))
class OpenAPIConfiguration {
}