Feature/gribjump axis branching

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 2.81690% with 138 lines in your changes are missing coverage. Please review.

Project coverage is 86.53%. Comparing base (317158b) to head (de8780e). Report is 30 commits behind head on develop.

:exclamation: Current head de8780e differs from pull request most recent head 50cfec2

Please upload reports for the commit 50cfec2 to get more accurate results.

Files	Patch %	Lines
tests/test_local_regular_grid.py	0.00%	40 Missing :warning:
tests/test_point_nearest.py	0.00%	24 Missing :warning:
polytope/datacube/backends/fdb.py	0.00%	12 Missing :warning:
tests/test_ecmwf_oper_data_fdb.py	0.00%	8 Missing :warning:
tests/test_incomplete_tree_fdb.py	0.00%	8 Missing :warning:
tests/test_local_grid_cyclic.py	0.00%	8 Missing :warning:
tests/test_cyclic_nearest.py	0.00%	7 Missing :warning:
tests/test_fdb_datacube.py	0.00%	4 Missing :warning:
tests/test_local_swiss_grid.py	0.00%	4 Missing :warning:
tests/test_multiple_param_fdb.py	0.00%	4 Missing :warning:
... and 5 more

Additional details and impacted files

```diff @@ Coverage Diff @@ ## develop #132 +/- ## =========================================== - Coverage 87.50% 86.53% -0.97% =========================================== Files 88 88 Lines 7098 7250 +152 =========================================== + Hits 6211 6274 +63 - Misses 887 976 +89 ```

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[jameshawkes]

At some point we need to revisit the hardcoding of the assumptions, but this is good for now