feat(geotiff): RGB GeoTIFFLoader

[giovannicimolin]

This is an experimental version of a GeoTIFF loader. Its goal is to add native RGB GeoTIFF rendering support for deck.gl to render aerial images, orthophotos and overlays into a deck instance.

Discussion on: #1280

TODO:

• Retrieve bounds/geospatial data from GeoTiff and add them to loader response
• Add tests
• Add example to deck.gl (with sample GeoTiff file)
• Split methods into proper files and folders
• Write testing instructions

Testing instructions:

TBD

[ibgreen]

@giovannicimolin I sent you an invite to the loaders.gl repository. That way you can push branches directly instead of working through a fork.

It would be nice if you could reopen this PR against a local branch, then I can push commits to your branch more easily. This can be quicker than writing a lot of feedback and waiting for you to make every small change.

[ibgreen]

Nit: Follow pattern set by other loaders

Suggested change

	interface GeoTiffLoaderOptions extends LoaderOptions {
	enableAlpha: boolean;
	}
	export type GeoTiffLoaderOptions = LoaderOptions & {
	geotiff?: {
	enableAlpha: boolean;
	}
	}

[ibgreen]

Nit: following pattern in other loader modules I would name this file geotiff-loader.ts

[giovannicimolin]

@ibgreen That was fast! I didn't even had the time to fix the comments you made. 😅

I'll create a follow-up PR with fixing the comments and adding some items from the todo list too.

Thanks for the quick review!

[ibgreen]

Didn't want this to go stale. I already put up a PR with fixes