[Feature] Achievements and Milestones

[Agonar35]

Is your feature request related to a problem? Please describe. Some achievements are too ambitious to be completed in just one step, that's why I like to work with milestones. I mean, just imagine someone who wants to lose or gain 20 pounds, but he/she wants to get some satisfaction and rewards once he/she lose or gain 5, 10 and 15 pounds. Even if they don't meet the 20 pounds objective, they've have lost or gained some pounds too and it has its merit too.

Describe the solution you'd like Being able of creating a main achievement and once inside, creating some milestones with smaller rewards, descriptions...

Describe alternatives you've considered Unknown