rules that not found in `stylelint` configuration file, should extends from `editorconfig`

[gucong3000]

• indentation
• no-missing-end-of-source-newline
• no-eol-whitespace

When these rules can not be read, or the value is empty, we should get the configuration from the editorconfig

[gucong3000]

PR #221 was merged, but we discard the features in this issue.

I want users use this configuration file:

{
  "rules": {
    "indentation": false,
    "no-eol-whitespace": false
  }
}

In this case, users can clearly express the hope that the use configuration of editorconfig.