demandimport: add python 3 implementation
This implementation uses the new importlib finder/loader functionality
available in Python 3.5 and up.
# no-check-commit
# See http://EditorConfig.org for the specification
root = true
[*.py]
indent_size = 4
indent_style = space
trim_trailing_whitespace = true
[*.{c,h}]
indent_size = 8
indent_style = tab
trim_trailing_whitespace = true