[Feature Request]: Add Support For Capping and Filling generated Layers

[firebladed]

Preflight Checklist

• I have searched the issue tracker for a feature request that matches the one I want to file, without success.

Problem Description

This is preemptive for Kicad 10 (exists in nightly builds)

Which adds
*-capping-front-back.gbr
and
*-filling-front-back.gbr

Layers generated as part of Generating Drill Files

Proposed Solution

include
*-capping-front-back.gbr
and
*-filling-front-back.gbr

in generated zip

Alternatives Considered

none i can think of

Additional Information

No response