Add table layout for `forge inspect <contract> abi`

[zaevlad]

I guess it will be very useful to add a forge command to see all available functions in the contract as well as inherited in it. For example, with a "forge functions -contract MyContract" user will get a table in the respond like:

Fisrt column - function name; Second column - internal, external, payable, public; Third - contract name (inherited one); Probably, forth - inside functios;

So it will be much easier to see a contract stucture.