More fine tuning around remainin plots

- Fine tuning for the plots only:
- Read datatrees for multiple xpaths
- Query with all descendants
- Writing 200 devices
- Saving list of 50 devices

Issue-ID: CPS-2192

Change-Id: I508e31cd861a4006cac41ebbbe307b7bd2acde2f
Signed-off-by: halil.cakal <halil.cakal@est.tech>
3 files changed