Built-in editorconfig support

[tomlin7]

Feature

Editorconfig is quite popular in developer communities and we should incorporate a basic support for this.

• detect editorconfig files in opened project directories
• confirm from user to load the configurations
• use the editorconfig parser and load the configurations

[Moosems]

pyeditorconfig module?

[tomlin7]

• run checks for editorconfig detection in project repo on active directory change
• then confirm from user to load the editorconfig settings (using messagebox for now, notification actions are planned)