Api change to let run set_attr and get_attr remotely

[mariostieriansys]

The API now runs set_attr and get_attr directly in EnSight, without looping over the ensobjlist on the PyEnSight side

I computed some performance against a 10k part synthetic dataset:

new branch

same session

session.ensight.objs.core.PARTS.set_attr("SELECTED", True): 263.00 s
session.ensight.objs.core.PARTS.get_attr("VISIBLE", True): 3.70 s

different sessions

session.ensight.objs.core.PARTS.set_attr("SELECTED", True): 243.37 s
session.ensight.objs.core.PARTS.get_attr("VISIBLE", True): 255.68

Main

same session

session.ensight.objs.core.PARTS.set_attr("SELECTED", True): 347.32 s
session.ensight.objs.core.PARTS.get_attr("VISIBLE", True): 82.43 s

different sessions

session.ensight.objs.core.PARTS.set_attr("SELECTED", True): 344.86 s
session.ensight.objs.core.PARTS.get_attr("VISIBLE", True): 344.98 s

So, apart from an overall 30% performance improvement, you also get a huge boost on following operations on the same list. This is because the code is now building an ensobjlist on the EnSight side. So, in the following operations, EnSight will create much faster the same list, using the cached data from the previous computation

[kecolburn]

I appreciate being included in the review. However, I don't know enough about the internal implementation and execution of this logic to make any sensible critique.

[codecov-commenter]

Codecov Report

Merging #287 (6bb8560) into main (014ee3e) will decrease coverage by 0.16%.
The diff coverage is 64.00%.

@@            Coverage Diff             @@
##             main     #287      +/-   ##
==========================================
- Coverage   82.64%   82.49%   -0.16%     
==========================================
  Files          17       17              
  Lines        2391     2399       +8     
  Branches      413      419       +6     
==========================================
+ Hits         1976     1979       +3     
+ Misses        275      274       -1     
- Partials      140      146       +6     

Files Changed	Coverage Δ
src/ansys/pyensight/core/listobj.py	75.94% <64.00%> (-4.34%)	⬇️

[margalva]

Approved with a suggestion (that applies to both methods). Up to you to take it or leave it.