Multilanguage whisper helper buy message support

[bri2]

When buying items there's alot of users that only get buy messages in their own language (it's a setting). With this change the whisper helper will now support those messages.

Note: I have translated the messages with Google Translate and copied what I think is the part that we can use to identify it as a buy message.

[Morph21]

did you compare those messages with ones on the pathofexile.com/trade?

[bri2]

did you compare those messages with ones on the pathofexile.com/trade?

Yes, I edited the language on the setting page and copied trade messages to myself

[Morph21]

ok, nice work :)