Adding methods to access /api/broadcast functionality

[thegrapesoda]

Adding methods to access /api/broadcast functionality, as per #6

get_multi: /api/broadcast
get_tournament_pgn: /api/broadcast/{broadcast_tournament_id}.pgn
get_round_pgn: /api/broadcast/round/{broadcast_round_id}.pgn

[thegrapesoda]

Nope - closing, will run tests and resubmit when ready, thanks.

[icp1994]

When you make changes to your pull request, please do not close and reopen your pull request. Instead, rather use git push --force, overwriting any old commits. Closing and opening your pull requests repeatedly spams the maintainers.

[thegrapesoda]

When you make changes to your pull request, please do not close and reopen your pull request. Instead, rather use git push --force, overwriting any old commits. Closing and opening your pull requests repeatedly spams the maintainers.

Sorry about that - I'll be more intentional going forward (and thank you for the git push -- info - I'm new to this)