* Update editorconfig-checker dependency
At least v2.0.7 [1] is required to check that a file does not contain a
final newline.
--
1.
https://github.com/editorconfig-checker/editorconfig-checker.javascript/releases/tag/2.0.7
* Add *.svg to editorconfig and enable checking in editorconfig-checker
* Remove final newline from existing SVG files
... to fix the `$ npm run wslint` command
