LRC: Add more metadata to text recordings
Issue generated from Tuleap's migration script. Originally submitted by: Emmanuel Lepage Vallee (elv13)
With the increased use of text messaging (not with offline one), manipulating TextRecording object is now more and more common. Such new features need easy access to various metadata collected by the recording, but not currently easily exposed. The most pressing one is knowing if the recording contains relevant payloads. Some TextRecording may only contain "invisible" MIME payloads. In those case, raising the text widget and sending notifications is only spamming the user.