Add method to import from fesom2 #1790

Job	Run time
cache-pixi-lock / Generate output	11s
Unit tests: ubuntu \| pixi run -e test-py311 tests	2m 26s
Unit tests: ubuntu \| pixi run -e test-py313 tests	2m 24s
Unit tests: windows \| pixi run -e test-latest tests	8m 51s
Unit tests: ubuntu \| pixi run -e test-minimum tests	2m 35s
Unit tests: ubuntu \| pixi run -e test-latest tests	2m 26s
Unit tests: mac \| pixi run -e test-latest tests	12h 42m 23s
Integration: ${{ matrix.os }} \| pixi run -e ${{ matrix.pixi-environment }} tests-notebooks	0s
TypeChecking: pixi run typing	0s
merge-test-artifacts	1s
	13h 1m 17s

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