More refactoring of lookup module #207

Job	Run time
lock-gdal (ubuntu-latest, 3.8)	47s
lock-gdal (ubuntu-latest, 3.12)	49s
lock-gdal (macos-latest, 3.8)	1m 10s
lock-gdal (macos-latest, 3.12)	46s
lock-gdal (windows-latest, 3.8)	1m 51s
lock-gdal (windows-latest, 3.12)	1m 49s
install-gdal-with-conda (ubuntu-latest, 3.8)	40s
install-gdal-with-micromamba (ubuntu-latest, 3.8)	27s
install-gdal-with-conda (macos-latest, 3.8)	1m 28s
install-gdal-with-conda-lock (ubuntu-latest, 3.8)	1m 26s
install-gdal-with-micromamba (macos-latest, 3.8)	47s
install-gdal-with-conda (windows-latest, 3.8)	2m 55s
install-gdal-with-conda-lock (ubuntu-latest, 3.12)	1m 10s
install-gdal-with-conda-lock (macos-latest, 3.8)	1m 46s
install-gdal-with-conda-lock (macos-latest, 3.12)	1m 39s
install-gdal-with-micromamba (windows-latest, 3.8)	1m 12s
install-gdal-with-conda-lock (windows-latest, 3.8)	4m 37s
install-gdal-with-conda-lock (windows-latest, 3.12)	4m 35s
	29m 54s

Provide feedback