module-public-interface is a field in the module record

module-public-interface is a field in the module record

* module/ice-9/boot-9.scm (module-public-interface)
  (set-module-public-interface!): Instead of using
  '%module-public-interface, use a field in the module instead.
  (make-module, make-autoload-interface): Adapt.

* module/ice-9/deprecated.scm (module-public-interface):
  (set-module-public-interface!): Add shims so that manually munging
  %module-public-interface should continue to work.