##### SUMMARY
2.9/devel currently supports relative Python imports inside a collection for all but modules/module_utils. Extend the AnsiballZ analysis/bundling to support relative imports for those as well.

##### ISSUE TYPE
- Feature Idea

##### COMPONENT NAME
module_common.py

##### ADDITIONAL INFORMATION
This is needed to minimize the number of places a collection must refer to itself by name. Also a convenience for shorter intra-collection Python imports (eg `from ..module_utils.blah import AThing` vs. `from ansible_collections.myns.mycoll.plugins.module_utils.blah import AThing`)
filters = defaultdict(frozenset)
    user_set = False
    if C.PLUGIN_FILTERS_CFG is None:
        filter_cfg = '/etc/ansible/plugin_filters.yml'
    else:
        filter_cfg = C.PLUGIN_FILTERS_CFG
        user_set = True
    if os.path.exists(filter_cfg):
        with open(filter_cfg, 'rb') as f:
            try:
                filter_data = from_yaml(f.read())
            except Exception as e:
                display.warning(u'The plugin filter file, {0} was not parsable.'
                                u' Skipping: {1}'.format(filter_cfg, to_text(e)))
                return filters
        try:
            version = filter_data['filter_version']
        except KeyError:
            display.warning(u'The plugin filter file, {0} was invalid.'