Implemented option to use different providers for checking item prices

[ForsakenNGS]

• Added various data that can be grabbed from the official poe trading api and wiki
• Added advanced item parser (including item mods, min-/max-rolls, sockets, ...)
• Added first implementation of price checking for the official poe trading api
  • "src/resource/modPseudoMappings.json" contains some rules for combining certain mods into pseudo-mods when searching or ignoring some in certain cases
  • "src/modules/poetrade.js" function "getSearchQuery" contains the core logic for setting up the search parameters

I was already working on this for a few weeks, but after the poeprices.info api went down for multiple days (making this tool mostly unusable) I took the time this weekend and polished it as much as possible. It should leave the current functionality unchanged, but provide the option to use alternative providers in case of a downtime. In addition to that the "PoeData" class and extended item parser allows to get more detailed information about mod rolls and the item in general, which allows to provide additional information (e.g. notify about max rolls) and chances to improve the current workflow (e.g. automatically obtain league names, refine price estimates or fallback to different providers)

If there are any issues with my code, feel free to tell me about it and I will look into it as soon as I can. If you want to use this code for other projects, feel free to do so.

[klayveR]

Sound great, good work! I'll check it out as soon as possible, hopefully I'll have it merged by tomorrow.

Thank you so much for your contribution!

[ForsakenNGS]

I actually noticed a few changes I'd like to make in order to simplify the code on your side, therefore leave it for now. Things I will change in the next few days before creating an updated merge request:

• Move the interfaces to the official path of exile api's into a seperate nodejs module (will keep the xenontrade codebase smaller and allows easier use of the functions on other projects)
• Extend the settings for the price estimation providers (right now it makes that setting tab pretty bulky)
• Create a more refined interface to add price providers and allow an automatic fallback (if the selected source for the price estimate fails, automatically use the next one)
• Maybe some minor tweaks for unique price estimations and inclusion of scarab pricing

[klayveR]

Sounds great! I wrote a module for the official API and one for even more in-depth itemtext parsing which I planned to use for XenonTrade a while ago. If you like we could collaborate on those modules, I think I even have them written in typescript somewhere. I'd love to chat about this. In case you have Discord my tag is klayveR#5312, feel free to add me if you want.

Thanks again, your contribution really motivates me to pick this up again as soon as I can!