feat(`chisel`): add in-line assembly { .. } mode

[kadenzipfel]

Component

Chisel

Describe the feature you would like

I most commonly find myself using chisel to identify the result of assembly logic, but find it requires an extra step to work with, i.e. if I want to get the result of something simple, like not(0), I have to do something like:

> uint256 a
> assembly { a := not(0) }
> a

Instead, it would be super useful if I could somehow indicate that I'm passing assembly logic directly and to output the value of that logic, effectively doing the above behind the scenes

Additional context

No response

[mds1]

Agreed this would be really useful. Not sure how feasible it is, but maybe by default the last statement in the assembly block has the result printed by default? cc @clabby