Client challenge content

Related to post-match awards that are seen as challenges by the game.

https://gamecms-hacs.svc.halowaypoint.com/hi/Progression/file/ChallengeContent/ClientChallengeDefinitions/MatchXPTerms/XArenaPlay.json?flight=31279525-99eb-452d-a68d-05a43270df7e

https://gamecms-hacs.svc.halowaypoint.com/hi/Progression/file/ChallengeContent/ClientChallengeDefinitions/MatchXPTerms/XArenaRankTop2.json?flight=31279525-99eb-452d-a68d-05a43270df7e