Updates in Codeforces API

[unaimillan]

Describe the bug
Codeforces have updated their API and added new parameter asManager to the context.status endpoint
https://codeforces.com/apiHelp/methods#contest.status

To Reproduce
Steps to reproduce the behavior:

1. Create codeforces_api.CodeforcesApi object
2. Call the CodeforcesApi.contest_status method with parameter asManager=True

Expected behavior
Method should work as expected and forward the argument to codeforces webapi

Additional context

[unaimillan]

The full list of new parameters in API according to official docs:

• contest.hacks new param asManager
• contest.standings new param asManager
• contest.status new param asManager
• user.info new param checkHistoricHandles
• user.ratedList new param includeRetired and contestId