[feature request] parse currency symboles after the ammount (with potential space)

[WeberJulian]

Right now, from my testing '€10,50' is parsed correctly. But in Europe, we usually write '10,50€' or '10,50 €'.
https://en.wikipedia.org/wiki/Euro_sign

We could maybe have a currency_before bool parameter that's dependent on the language? and then use it here

gruut/gruut/text_processor.py

Line 1910 in 6226382

if word.text.startswith(currency_symbol):

to check if word ends with the currency.

How should we deal with the space? Maybe in currency_before == Fasle languages, we can colapse spaces between curency signs and a digit when the digit is first?