Fix operator interface errors in CompositeOp and DebiasOp

[cslht]

Two fixes in the operators:

• CompositeOp.range_shape returned wavelet.domain_shape (the wavelet input space), which is neither the coefficient space nor the measurement space; now returns phi.range_shape, matching the actual forward output shape.
• DebiasOp imported verbose from tabnanny, which shadowed the verbose parameter; removed the import and added verbose: bool = False to the signature.

[AnderBiguri]

Thanks! I leave this unmerge for now because I am not sure if this is the way we will do operators. I'll get back to you soon on this.

[cslht]

Sure, no rush on my end. Just a heads-up: the two changes in here are unrelated. The DebiasOp fix is a plain bug — a stray from tabnanny import verbose shadowed the verbose parameter, so progress_bar=True crashes. Happy to split that one out if youd like it merged before the operator design is settled.

Also, since Ive had a few PRs merged (#194–#202), could you add me to the README contributors list? An @all-contributors please add @cslht for code would do it. Thanks!

[allcontributors]

@cslht

I've put up a pull request to add @cslht! 🎉