Printf to file

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Type of issue: Feature Request

Is your feature request related to a problem? Please describe.
printf only can print to stdout, when design is big, it will be unreasonable to use printf for debugging.

Describe the solution you'd like
Here are different solutions:

• provide an IR for fd as some how Input, printf by default print to stdout fd, but user can pass fd though the the design hierarchy.
• add an circt option or a special PrintfToFile layer to ask printf in layer goes to fd for corresponding layer.

Describe alternatives you've considered
There are some dirty hacks on this, e.g. prefix printf and deal with stdout with grep:(

What is the use case for implementing this feature?
simulation time logging.