Allow additional drivers to the geotiff writer

[tpoisot]

New syntax to read geotiffs:

path = ".../file.tif"
L = SimpleSDMPredictor(path; bandnumber=2, left=-100., right=10.4, top=0.1, bottom=-12.0)

New syntax to write geotiffs:

SpeciesDistributionToolkit.save(path, L; driver="COG")

• Closes Allow options to ArchGDAL driver when saving Geotiff #30
• Closes The order of arguments to read/save geotiffs make no sense #38

[tpoisot]

This still needs a little warning (error?) if the file is not a tiff. I'll expand to NetCDF when the first dataset that requires it lands (probably #36).

[gottacatchenall]

We might want to add another keyword argument for the compression type as well, currently it's using LZW, and @glaroc mentioned a particular best method at some point but I don't remember what it was

[gottacatchenall]

👍