Add into_builder method for WriterProperties

[corwinjoy]

Which issue does this PR close?

• Closes Add a way to modify WriterProperties #8273 .

Rationale for this change

When working with the library using encryption, we have sometimes found it necessary to modify an existing set of WriterProperties on a per-file basis to set specific encryption properties. More generally, others may need to use an existing set of WriterProperties as a template and modify the properties. I have implemented this feature by adding an into_builder method, which appears to be the standard approach in other parts of the library.

Are these changes tested?

Yes, test_writer_properties_builder has been updated to add a round-trip test for into_builder.

Are there any user-facing changes?

Yes. WriterProperties now has a new into_builder method.

[corwinjoy]

@adamreeve
It may also be a good idea to add a Clone property to WriterPropertiesBuilder to facilitate the use of this class as a template for creating WriterProperties.

[adamreeve]

👍 Makes sense to me.

Looking at other into_builder methods in the arrow-rs codebase, they often seem to delegate to calling into or from. It might be nice to also provide an impl From<WriterProperties> for WriterPropertiesBuilder, so users have a choice to use that or the more explicit into_builder.

[corwinjoy]

👍 Makes sense to me.

Looking at other into_builder methods in the arrow-rs codebase, they often seem to delegate to calling into or from. It might be nice to also provide an impl From<WriterProperties> for WriterPropertiesBuilder, so users have a choice to use that or the more explicit into_builder.

Alright. I added that as well.

[etseidl]

Looks sensible to me. Thanks @corwinjoy

[alamb]

Thanks @corwinjoy , @adamreeve and @etseidl

I agree this looks good to me