Adding the new arg passing syntax to `c3c run`

[DrSloth]

We can pass arguments to compile-run using a --. This would also be nice to have on the c3c run command such that you can quickly try out your programs and pass arguments to them.

[prithvidiamond1]

Hi! Can I have a go at this?

[lerno]

Hi! Can I have a go at this?

Yes, please do.

[prithvidiamond1]

Created a PR for this.

Honestly, very little needed changing. Credit must go to @rexim for this.

I also implemented the arg passing syntax for the clean-run command cause I am sure someone will ask for the feature sometime in the future and it was once again minimal effort.