iOS frameworks don't include module maps

Created by: RPallas92

After building a .framework file with Buck with the following rule:

apple_bundle(
    name = "SharedBundle",
    visibility = [
        "PUBLIC",
    ],
    extension = "framework",
    binary = ":Shared#static",
    product_name = "Shared",
    info_plist = "Info.plist",
    deps = [
        ":SharedResources",
    ],
    info_plist_substitutions = info_plist_substitutions("Shared"),
)

A Shared.frameworks gets build, but it does not include module maps either header files.

So when we try to import it in a xcode project, we add it as a embedded binary, but we are unable to import it from Swift code (Import Shared) because of the missing module maps.