shared: Add support for nested object and array logging #129

[vanlueckn]

Related to #129

Reimplements the V8Helpers::Stringify method for logging nested arrays and objects.

Before: [object Object],1,2,3

After: [{a: 10}, 1, 2, 3]

[xxshady]

@vanlueckn We don't need implementation in c++ anymore, i already ported util inspect from nodejs #170 and we will use it for logging

[vanlueckn]

I think that this is a good thing anyway

[LeonMrBonnie]

This is horrible for performance, I already thought about doing it like that before, but it was too bad for performance. We don't need this anyway once #170 is merged