Create a leaderboard with the best-performing scores

[hemvall]

route should be : /leaderboard/7-days or /leaderboard/all-time

[hemvall]

Score is based on various metrics :

• Is it a PR ?
• How many % compared to last sessions
• How many % how many compared to PR
• If PR -> how much more since the last one ?
• Goal created more than a week ago
• Goal created more than a month ago

[hemvall]

alter table users add column TotalScore int(50);

[hemvall]

alter table users add column Username varchar(50);