Bug in append filter

[davidmegginson]

Using hxlappend from the command line:

Traceback (most recent call last):
  File "/home/david/Source/HXL/3wtest/venv/bin/hxlappend", line 8, in <module>
    sys.exit(hxlappend())
  File "/home/david/Source/HXL/3wtest/venv/lib/python3.10/site-packages/hxl/scripts.py", line 43, in hxlappend
    run_script(hxlappend_main)
  File "/home/david/Source/HXL/3wtest/venv/lib/python3.10/site-packages/hxl/scripts.py", line 1016, in run_script
    sys.exit(func(sys.argv[1:], STDIN, sys.stdout))
  File "/home/david/Source/HXL/3wtest/venv/lib/python3.10/site-packages/hxl/scripts.py", line 198, in hxlappend_main
    append_sources.append(hxl.data(append_source, True))
  File "/home/david/Source/HXL/3wtest/venv/lib/python3.10/site-packages/hxl/input.py", line 181, in data
    if input_options and input_options.scan_ckan_resources:
AttributeError: 'bool' object has no attribute 'scan_ckan_resources'