Convert yara-python C interface objects to usable python dict data structure.

yara_to_dict.py

# reduces yara.Match object to dict
# work around yara.Match pickling issue with multiprocessing
# https://github.com/VirusTotal/yara-python/issues/84#issuecomment-562228512
# yara.Match also does not work with __dict__ or json, or else I would use that
def yaraMatchesToDict(yara_matches):
    match_list = []
    
    for item in yara_matches:
        # reproduce structure in https://yara.readthedocs.io/en/latest/yarapython.html#yara.Match
        # using accessible python dict data structure
        match = {'rule': None, 'namespace': None, 'tags': [], 'meta': {}, 'strings': []}

        match['rule'] = item.rule
        match['namespace'] = item.namespace
        match['tags'] = item.tags
        match['meta'] = item.meta
        match['strings'] = item.strings
        
        # Add match to new list
        match_list.append(match)
    
    return match_list