Description

This PR implements the optimisation by yielding scheduler time to other goroutines if the current one is blocked. Previously goroutines take up the entire time quantum even if it was blocked, preventing other idle goroutines from executing.

Additionally, I have also added an naive deadlock detection mechanism, exiting from the program if all goroutines are blocked. However because of how syncing process of unbuffered channels work, we cannot simply exit the moment the scheduler sees that all goroutines are blocked. This is because during the syncing process of unbuffered channels, both the sender and receiver will be blocked, but progress is being made. Therefore, to detect deadlocks, we are checking for N consecutive cycles where all N goroutines are blocked before exiting and erroring.

I have also added a @benchmark decorator for testing our scheduler