Streamline CI

[scholarsmate]

Now that the project is maturing toward a 1.0.0 release, we ought to streamline the CI process.

1. build-and-test - Do a matrix build of the native library (compiled for Release), Scala Server, TypeScript Client. Run the library test suite (via ctest), the Scala API test (via sbt test), the Scala RPC test (via sbt serv/test), and then the TypeScript Client test with the reference (C++) and production (Scala) RPC servers.
2. release - For a release, if the builds and tests pass, package, and publish the artifacts.