* Migrating from Xctests to swift testing
This migrates to the new Swift testing framework,
which would allow us to always use the latest tech
from swift moving forward.
* Updates flag to make sure that Wasm testing works
* Migrate to swift 6.0 & swift-gRPC 2.0
The following migrates to swift 6.0, and also
migrate to swift-grpc 2.0 that uses swift-nio
under the hood to provide nicer API and async await
Adds sendable to enum & update @_implementationOnly imports to use internal imports
* Address PR comments regarding misspelling & proper method naming.
Adding support for windows requires the code generations
to add a compiler statement to completely ignore GRPC code
generation on windows
Cleanup the project to use the main Package.swift to run tests
instead of having it separate and includes the imports for GRPC
within it.
Adds windows swift ci
