add CI test build-coded-split-rendering

A test that would check a build for split rendering being activated could be added to the CI.

It happened to me not only once that I learned about the build failure only from the smoke-test result which unnecessarily takes the computational resources.

It would likely only be passing the -INCLUDE_SPLIT=1 to make. Maybe we want to have a job for make and for cmake as we have for anything else.

Tagging @kiene and @pihlajakuja.