myapp.wsgi: Handle requests for .json files

[jwodder]

This should fix the 404 reported at dandi/dandidav#43 (comment).

Also, my editor plugins automatically reformatted the code.

[yarikoptic]

what actually changed in this file besides formatting? would have been nice to have two separate commits at least or some human description of the change

[jwodder]

This part is new:

zarr-manifests/myapp.wsgi

Lines 27 to 35 in b66d867

	if os.path.isfile(full_path) and os.path.splitext(full_path)[1] == ".json":
	status = "200 OK"
	response_headers = [
	("Content-type", "application/json"),
	("Content-Length", str(os.path.getsize(full_path))),
	]
	start_response(status, response_headers)
	with open(full_path, "rb") as fp:
	return iter(lambda: fp.read(65535), b"")

[yarikoptic]

ok, this is the change -- pass .json files content as is.... will merge/"deploy"