Request: inspect: signature & getfullargspec & getcallargs

[Dom Grigonis]

Hello,

I have a request.

Would it be possible to include `follow_wrapper_chains` and `skip_bound_arg` arguments to higher level functions of `inspect` module?

Would exposing them, but setting defaults to what they currently are, be possible?

I sometimes need:
	* `getcallargs`, but without `bound_arg`
	* `getfullargspec` to `follow_wrapper_chains`
	* `signature` to include `bound_arg`.


Regards,
DG