Set name of Swift module in uniffi.toml

[thunderbiscuit]

You can add the module_name field to the uniffi.toml file to name the module correctly from the get go instead of building the default one (bdk.swift) and then renaming it in our shell build file. See all config options for Swift here.

Note that fixing this requires adding to the uniffi.toml file:

[bindings.swift]
cdylib_name = "bdkffi"
module_name = "BitcoinDevKit"

But also fixing the build-local-swift.sh file as well as the CI workflow on the bdk-swift repo.

• [ ] uniffi.toml
• [ ] build-local-swift.sh
• [ ] publish-spm.yaml on bdk-swift repository