Add headers to read_text as an optional field

[waystilos]

Is your feature request related to a problem? Please describe.

When generating a stac item in my current project, instead of creating a SAS token and appending it to a URL, I would like to pass an Auth header to read_text() which would eventually get passed down to urllib.request. Maybe something like this already exists and I'm missing it.

The current code looks like this:

if fgdc_metadata_href is not None:
            fgdc_metadata_text = read_text(
                fgdc_metadata_href, fgdc_url_func)
            fgdc = parse_fgdc_metadata(fgdc_metadata_text)
        else:
            fgdc = {}

Describe the solution you'd like

Maybe something like this where you pass in the headers

if fgdc_metadata_href is not None:
            fgdc_metadata_text = read_text(
                fgdc_metadata_href, headers)
            fgdc = parse_fgdc_metadata(fgdc_metadata_text)
        else:
            fgdc = {}

Describe alternatives you've considered

I've downloaded the metadata file locally and added the absolute path to read_text but it has perf issues and also would like to have a URL in the stac item.