Revenue Detail: Daily, Monthly, Yearly

[jordymeow]

Hi,

I would like to suggest a little feature. It would be great to have the choice between Daily, Monthly and Yearly (at least that) in the Revenue Detail. It's the only basic feature missing to this already great plugin. I can probably help coding it a bit but would you have a few pointers to make this dev faster and cleaner? Maybe there is very few to add to make this work, so I thought I would ask first. Thank you :)