Fix wizard connection for complex passwords (stored as html entities)

[enursed]

since we read the pogodroid password from xml file, we need to convert some chars like <, >, .. back to ascii.
to do this i found a nice solution from WinEunuuchs2Unix: on https://stackoverflow.com/a/43058947)

tested with simple and complex passwords like N(%;%F,}+>w

Thx i hope this is useful for you guys doing a great job! :)

[krzee]

i started merging this in, and realized that if i support it here i need to support it in 42mad... im not prepared to do that, i kinda feel like some chars just shouldnt be used 🤷
if you care to also add it to 42mad and test that too, then i'll accept it... but i totally dont mind if you dont want to

[Expl0dingBanana]

I can update the 64 bit branch to auto-encode XML characters

[krzee]

i havent wrapped my ahead around if my side will work with that, but if you do that sounds cool too!