Esperanto support (add ^ above missing letters [c, g, h, j, s] like is put above vowels)

[EuriNaiz]

Hi, before all, I want to thank you for your work.

As long as I have seen, theorically, Poppins must support Esperanto because their alphabet is not so different than others supported.

ĉ, ĝ, ĥ, ĵ, and ŝ letters aren't displayed, and â or ê used on french or portuguese are working fine

ŭ letter is also used, but it works fine.

With a simple settings the ^ above c, g, h, j and s could be put as it is put above vowels.

I hope it could be fixed and thank you.