INT-3461: Add `rometools` dependency for SF 4.1

JIRA: https://jira.spring.io/browse/INT-3461

**Cherry-pick to 4.0.x**

To test it: `gradlew :spring-integration-http:testAll -PspringVersion=4.1.0.BUILD-SNAPSHOT`
I think we might need to make `HttpRequestHandlingEndpointSupport.romePresent` smarter right now, it will be true if the wrong rome is on the classpath.