Easily start a local node instance with access to debug print statements

[kayagokalp]

Problem

Currently printing arbitrary stuff inside a contract for debugging purposes is hard. We want to have a way to basically enable people to spam println's across the contracts so that debugging them is much easier.

Possible Solution

We should investigate usage of ecall to extend a VM with such instruction such that we can print arbitrary stuff. This new VM should easily be usable with upcoming forc-node (#5689)