formatter: factor out format*() functions to separate classes
New converter classes will be reused by a nested formatter. See the next
patch for details.
This change is also good in that the default values are defined uniquely
by the baseformatter.
# 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