The report issue command

[chao-master]

Implement a command that allows users to raise github issues directly from inside the chat.

Ideally the user would first use the command (proably limited to private only) to start the process.
Next the user would reply to that message with 1 or more messages that would be concatenated together.
Images should be insert able between text by uploading them between messages.
Finally they would end with the command again, proably with an end paramater.
Preview and editing paramates may also be useful.

Markdown support optional - not sure how much it will interfere with telegram existing markdown system

NB: we will need to find a way to allow anonymous issue raising.