More refactoring of lookup module #197

Job	Run time
lock-gdal (ubuntu-latest, 3.8)	46s
lock-gdal (ubuntu-latest, 3.12)	38s
lock-gdal (macos-latest, 3.8)	1m 10s
lock-gdal (macos-latest, 3.12)	44s
lock-gdal (windows-latest, 3.8)	1m 36s
lock-gdal (windows-latest, 3.12)	1m 33s
install-gdal-with-micromamba (ubuntu-latest, 3.8)	31s
install-gdal-with-conda (ubuntu-latest, 3.8)	40s
install-gdal-with-micromamba (macos-latest, 3.8)	37s
install-gdal-with-conda-lock (ubuntu-latest, 3.8)	1m 15s
install-gdal-with-conda (macos-latest, 3.8)	1m 2s
install-gdal-with-micromamba (windows-latest, 3.8)	1m 47s
install-gdal-with-conda-lock (ubuntu-latest, 3.12)	1m 29s
install-gdal-with-conda (windows-latest, 3.8)	2m 3s
install-gdal-with-conda-lock (macos-latest, 3.8)	1m 42s
install-gdal-with-conda-lock (macos-latest, 3.12)	1m 36s
install-gdal-with-conda-lock (windows-latest, 3.8)	4m 26s
install-gdal-with-conda-lock (windows-latest, 3.12)	3m 36s
	27m 11s

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