More refactoring of lookup module #209

Job	Run time
lock-gdal (ubuntu-latest, 3.8)	1m 5s
lock-gdal (ubuntu-latest, 3.12)	46s
lock-gdal (macos-latest, 3.8)	1m 10s
lock-gdal (macos-latest, 3.12)	1m 22s
lock-gdal (windows-latest, 3.8)	1m 47s
lock-gdal (windows-latest, 3.12)	2m 0s
install-gdal-with-micromamba (ubuntu-latest, 3.8)	28s
install-gdal-with-micromamba (macos-latest, 3.8)	40s
install-gdal-with-conda (ubuntu-latest, 3.8)	40s
install-gdal-with-conda (macos-latest, 3.8)	1m 7s
install-gdal-with-micromamba (windows-latest, 3.8)	1m 10s
install-gdal-with-conda-lock (ubuntu-latest, 3.8)	1m 11s
install-gdal-with-conda (windows-latest, 3.8)	2m 40s
install-gdal-with-conda-lock (ubuntu-latest, 3.12)	1m 26s
install-gdal-with-conda-lock (macos-latest, 3.8)	2m 15s
install-gdal-with-conda-lock (macos-latest, 3.12)	1m 39s
install-gdal-with-conda-lock (windows-latest, 3.8)	3m 50s
install-gdal-with-conda-lock (windows-latest, 3.12)	3m 58s
	29m 14s

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