WIP: Enable quest eggs in Market after two runs
feat(quests): Allow purchase of quest pets

Implements purchase in the Market of the two currently available pet quest eggs, after the user has completed the corresponding quest at least twice. This is a hard-code solution; @lefnire or others a little more adept in Angular might be able to make this generic and extensible with an ng-repeat--I just couldn't get the expression quite right.
Merge pull request #3087 from HabitRPG/sabe/quests

Allow purchase of quest pet eggs in Market