SCC revector transformation that gives sequential kernels

[MichaelSt98]

New/additional SCC revector transformation that hoists the horizontal loop to the driver and passes the horizontal/loop variable to the kernel(s).

[github-actions]

Documentation for this branch can be viewed at https://sites.ecmwf.int/docs/loki/483/index.html

[codecov]

Codecov Report

Attention: Patch coverage is 91.87279% with 23 lines in your changes missing coverage. Please review.

Project coverage is 96.13%. Comparing base (48c5cbf) to head (f3591ec).

Files with missing lines	Patch %	Lines
loki/transformations/single_column/vector.py	79.82%	23 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #483      +/-   ##
==========================================
- Coverage   96.17%   96.13%   -0.04%     
==========================================
  Files         224      224              
  Lines       40386    40582     +196     
==========================================
+ Hits        38842    39015     +173     
- Misses       1544     1567      +23     

Flag	Coverage Δ
lint_rules	96.39% <ø> (ø)
loki	96.13% <91.87%> (-0.04%)	⬇️

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