How to disable editorconfig-mode for certain major modes?

[mcandre]

While waiting for #75, it would be useful to workaround editorconfig flaws with certain major modes, by disabling editorconfig when in those modes.

[mcandre]

Accomplished with

(add-hook 'sh-mode-hook
          (lambda ()
            (editorconfig-mode 0)))

[10sr]

I think this will not work as expected... it will disable editorconfig "globally": properties will not be applied to any files opened after visiting sh-mode file.
I'll add a new variable for this.

[10sr]

I've added a variable editorconfig-exclude-modes for this porpose 😸