Fixing EUR format

[nmaupu]

Hi thanks for the lib !

This PR follows the issue #58 where a guy opens an issue and vanished...

I am not sure this is the official format for all EUR countries.
If this is not the case, I can create an EUR_FR for example (this the correct format for France for sure ;)).

[Rhymond]

Hi @nmaupu
Thanks for the change

From the wiki (https://en.wikipedia.org/wiki/Euro_sign)

Placement of the sign also varies. Countries have generally continued the style used for their former currencies. In those countries where previous convention was to place the currency sign before the figure, the euro sign is placed in the same position (e.g., €3.50).[6] In those countries where the amount preceded the national currency sign, the euro sign is again placed in that relative position (e.g., 3,50 €).

It looks like there is no official rule on which side to place the sign, the whole table where to place the "eur" sign you can find here: https://en.wikipedia.org/wiki/Language_and_the_euro#Summary

Do you have any ideas how we can solve this? Do you think we should keep "1 $" because of the majority of countries have it?

[Rhymond]

Please let me know if there are any updates and re-open the PR