add LogSanitizer to filter out sensitive values from logs

usage example:
import logging
from mistapi.__logger import LogSanitizer

LOG_FILE = "./log.txt"
logging.basicConfig(filename=LOG_FILE, filemode="w")
LOGGER = logging.getLogger(__name__)
LOGGER.setLevel(logging.DEBUG)
LOGGER.addFilter(LogSanitizer())

LOGGER.debug(var_with_sensitive_data)