Implement ADF Change 73: Add "annotation" mark to mediaSingle and mediaInline node

[Craig Lawrence]

https://product-fabric.atlassian.net/wiki/spaces/ADF/pages/4087873689/Draft+ADF+Change+73+Add+annotation+mark+to+mediaSingle+and+mediaInline+node

[Chris Fuller]

1. This shouldn't really matter for Jira, because it doesn't support the annotation mark at all (it's what Confluence uses for inline comments).
2. A minimal change is probably just adding the MediaMark and MediaInlineMark marker interfaces to the Annotation class.
3. A test or two would probably make sense as well.
4. Additional helpers like .annotation(Annotation) probably aren't that useful, as they wouldn't be any clearer than the .mark(Annotation) that the Marked class will get out-of-the-box anyway.

[Chris Fuller]

These changes are ready to go on branch https://bitbucket.org/atlassian/adf-builder-java/branch/issue/81-media-annotations . It looks like the schema changes have gone out but that the schema change hasn't been picked up by CS yet, so waiting for that to happen before opening the PR.

cc: @Rachel Yu

[Chris Fuller]

Fixed in 0.37.0.