Create GW2_WvW_Companion.cpp

You'll need these:
https://api.guildwars2.com/v1/wvw/match_details.json?match_id=2-8
https://api.guildwars2.com/v1/wvw/objective_names.json
https://api.guildwars2.com/v1/wvw/matches.json