PointCloud Fortran interface

[benjaminmenetrier]

Hello @wdeconinck, I hope that you are well.

This PR has been merged in the develop-jcsda branch already (#12). Since it does not impact any existing feature of ATLAS, we would like to have it merged into the develop branch of ECMWF.

It would be nice if this PR could be merged this week, since we would like to merge a branch of SABER next week that uses this feature.

[codecov-io]

Codecov Report

Merging #17 into develop will increase coverage by 0.05%.
The diff coverage is 7.40%.

@@             Coverage Diff             @@
##           develop      #17      +/-   ##
===========================================
+ Coverage    71.50%   71.56%   +0.05%     
===========================================
  Files          506      505       -1     
  Lines        32272    32240      -32     
===========================================
- Hits         23077    23071       -6     
+ Misses        9195     9169      -26     

Impacted Files	Coverage Δ
src/atlas/functionspace/PointCloud.cc	66.35% <0.00%> (-9.99%)	⬇️
src/atlas/functionspace/PointCloud.h	91.17% <ø> (ø)
.../atlas/functionspace/detail/PointCloudInterface.cc	11.11% <11.11%> (ø)
...atlas/meshgenerator/detail/MeshGeneratorFactory.cc	84.61% <100.00%> (+4.61%)	⬆️
src/atlas/mesh/actions/BuildNoConnectivityMesh.cc
...eshgenerator/detail/NoConnectivityMeshGenerator.cc
src/atlas/output/detail/GmshIO.cc	70.59% <0.00%> (+0.15%)	⬆️

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[wdeconinck]

Hi Benjamin,
I have spent the past week merging in the develop-jcsda branch into develop, which also contains your changes, although I have squashed and moved around some commits.
It also should contain the Bugfix for the structuredcolumns that you reported.
It is just pushed now.
If the develop branch in current state works for you now, let me know, and I can close this PR.

[benjaminmenetrier]

Hi @wdeconinck, thank you very much for this merge. I have tested our branches that require the PointCloud fortran interfaces with your develop branch and all the tests are successful.

We will mirror your develop branch into our fork next week. I'm glad both repos will be in sync again!
I mention @ytremolet to let him know.