Given an issue_attachment_id, the client application should be able to retrieve the meta information of the attachment(file type, size, date, etc..).

This is useful if the download url attribute included in issue_data is not used. Our end users doesn't have login access to mantis and they use the EmailReporting plugin to report issues. In such cases the client application has to get the attachment content from mantis SOAP, but unable to send to the browser since the client application doesn't know the file type.

Currently, the only method to get attachment meta information is to use mc_issue_get and iterate the attachments attribute.

The API should take the issue_attachment_id as an argument and return the meta information object.