The state machine now support calls and returns, including recursive.

[dimacurrentai]

Saw the following output when curl-ing http://localhost:3000/state:

Active tasks:
Task ID: 32, Description: Fibonacci number 20, Stack: [FibonacciTaskCalculate]
Task ID: 34, Description: Factorial of 5, Stack: [FactorialReturn, FactorialRecursionPostSleep]
Task ID: 33, Description: Divisors of 100, Stack: [DivisorsPrintAndMoveOn]

Something is definitely working!