Delivery reports include time

[Zokii0]

Checklist

• I made sure that there are no existing issues - open or closed - to which I could contribute my information.
• I made sure that there are no existing discussions - open or closed - to which I could contribute my information.
• I have read the FAQs inside the app (Menu -> About -> FAQs) and my problem isn't listed.
• I have taken the time to fill in all the required details. I understand that the request will be dismissed otherwise.
• This issue contains only one feature request.
• I have read and understood the contribution guidelines.

Feature description

Could delivery reports include the time of delivered message?

Why do you want this feature?

Useful in order to know when is person's device connected/enabled in order to contact them (when they're previously in airplane mode for example)

Additional information

Examples of how could look like, double ticks replaced with "Delivered at xy time" , and/or hold on message for more informations shows time when message was delivered.

[Aga-C]

It should be done along with #56.