Refactoring

Refactor graphcraft - replace repetitive code with functions/classes, make it easier to configure (race, ggtacker ID, etc.), put script in a main function so code won't be executed if it is imported elsewhere

Sleep for 1 second after every request - ggtracker asks to limit API calls rate to 1 per second
Merge pull request #1 from trflynn89/patch-1

Refactoring