added kwargs on hats.read_hats to pass http headers

[Schwarzam]

Added kwargs to hats.read_hats for HTTP headers support

This is related to
astronomy-commons/hats#411

And issue
astronomy-commons/hats#410

Even without the pull request in the hats repo, the code in this pull request works.

This code functions as expected, even without the corresponding pull request in the hats repository.
Tested with and without headers.

[github-actions]

Before [5fbe2e2]	After [4c5fe02]	Ratio	Benchmark (Parameter)
30.1±0.6ms	30.5±0.6ms	1.01	benchmarks.time_polygon_search
14.5±0.02s	14.4±0.03s	0.99	benchmarks.time_create_large_catalog
2.18±0.02s	2.15±0.01s	0.99	benchmarks.time_create_midsize_catalog
102±0.8ms	101±0.6ms	0.99	benchmarks.time_kdtree_crossmatch
16.9±2ms	15.9±0.4ms	0.94	benchmarks.time_box_filter_on_partition

Click here to view all benchmarks.