Add support for jest as a test runner

[DanielMSchmidt]

To go forward in the direction of being better integratable with jest we might consider writing a runner similar to the one used in pyjest.

As far as I can see we could get the same UI and behavior as normal jest tests. This would also enable us to do optimizations in the future like spawning multiple devices to parallelize test execution.

I think the effort of building a first "MVP" and maintaining it are not that high, so I thought it might be an idea.

[jessmartin]

Looks like #315 has docs on how to get started using Jest as a test runner. Not sure if this meets your needs @DanielMSchmidt.

[DanielMSchmidt]

For me there would need to be a nice out of the box solution for setting the configurations / using multiple configurations and maybe also parallelism, but maybe I should be more clear and move this into another issue. What do you think?

[stereodenis]

@DanielMSchmidt as for me, detox now has jest support and this issue could be closed

[DanielMSchmidt]

You are right :)