Proposal: Make the api key configurable

[graugraugrau]

Hey qqq3,

thanks for this cool app. It would be cool if the API key is configurable, so that I can use my own API key.

Best regards
G

good-weather/app/src/main/java/org/asdtm/goodweather/utils/ApiKeys.java

Line 8 in ab5d326

public static final String OPEN_WEATHER_MAP_API_KEY = "1487dd8a93bfd85d278d9ac8dcfee94c";