'read' and optional 'answer' a message

[tector]

'read' and 'answer' a message from another user,
user has to choose a reaction type to send and optionally answer with a response message to the sender. After that status of message will be 'read' = true.

kind of reaction will be stored too (later there are highscore points to add for this action)

Important: Before a message is marked as 'read' it is not possible to archive or delete it!