Use arrow eq kernels in CaseWhen expression evaluation

**Is your feature request related to a problem or challenge? Please describe what you are trying to do.**
Arrow kernels are implemented and tested and should be used when available.

**Describe the solution you'd like**
Use more of arrows kernels to benefit more from arrow speed / potential improvements.

**Describe alternatives you've considered**
n/a

**Additional context**
n/a
