Transformation to hoist temporaries in kernel language transpilation

[MichaelSt98]

hoisting arrays via pragma offload for low-level GPU implementations (no block index, which makes it different to SCCHoistTemporaryArraysTransformation)

[github-actions]

Documentation for this branch can be viewed at https://sites.ecmwf.int/docs/loki/291/index.html

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 94.95%. Comparing base (3e555d5) to head (a6bd653).
Report is 9 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #291      +/-   ##
==========================================
+ Coverage   94.92%   94.95%   +0.03%     
==========================================
  Files         152      153       +1     
  Lines       31421    32052     +631     
==========================================
+ Hits        29827    30436     +609     
- Misses       1594     1616      +22     

Flag	Coverage Δ
lint_rules	96.39% <ø> (ø)
loki	95.12% <ø> (+0.02%)	⬆️
transformations	92.14% <100.00%> (+0.03%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[reuterbal]

Thanks.

I think the list of variables to be added should be compiled in full before adding it to the routine, instead of adding them 1-by-1, otherwise good to go from me.