Fix testRunner

[jayghoshter]

Running testRunner locally on my machine results in several failures. I've tested this from commit a3216c4 to 44e0f81, taking the last commit from a batch of commits around similar time periods.

I didn't go beyond a3216c4 since my environment had the newest CMake, which required that commit to fix the HDF5 target issue.

[schmoelder]

To do

• Decide which tests to include in CI (using flag)
• Disable Jacobian tests for the colloidal one (or better, fix the jacobian!)
• Decide how to handle subtle differences due to platform or parallelization in the linear algebra and floating point (decided to only run tests on one platform) computations.

[jbreue16]

We need to revisit this issue as more and more developers are working on CADET (e.g. MCT, DG, Crystallization) and tests become substantial to not only ensure the numerics are correct and functional but to keep CADET maintainable.
We have failing tests of three categories: Unsupported functionality is tested; Test script was not maintained; Implementation flaws
The first category should be commented out, the second fixed, and the third kept but excluded from CI and documented in an Issue.

This issue is addressed in PR #155