Function that controls the delay between API calls to opendota, user can specify
the wait_time, but opendota asks you to limit yourself to 1 call per second
Usage
api_delay(start_time, wait_time = 1)
Arguments
start_time
Time of last API call
wait_time
Desired wait time between API calls
Value
There is no return, it simply sleeps the system for whatever time needed to
reach wait_time