core-ktx dependency is needed in generated code

[twyatt]

When someone is using Exercise, it will generate code that uses bundleOf (androidx.core.os.bundleOf).

When setting up Exercise, library consumers will commonly use the following Gradle configuration:

implementation("com.juul.exercise:annotations:$version")
ksp("com.juul.exercise:compile:$version")

Unfortunately, the generated code will not compile if the core-ktx dependency is not manually pulled in, as annotations module does not define core-ktx as api (nor should it do so).

Not sure the best approach to getting core-ktx pulled in, aside from either instructing that consumers pull in core-ktx manually or pull in an Exercise module that has core-ktx as api.

[cedrickcooke]

As an alternative, might make sense to include our own copy of bundleOf -- it'll bloat the binary size a tiny, tiny bit but solve the configuration issue cleanly.

[twyatt]

Does impose more maintenance burden on this library to maintain our own copy of bundleOf, but I can't think of a better solution.