[LTTP/SNIClient]: Hint scouting for seen items and read hint tiles

[Alchav]

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What is this fixing or adding?

SNI Client scouts hints for ledge and shop items when they are in view Scouts hints for read hint tiles by reading location and player data written to the ROM during hint text generation Adds functionality to Multiserver to allow scouting hints for other players in order to allow adding hints for your own items in other players' worlds

Unfortunately the best I could do to test that hint tiles are being read is checking that you are near a hint tile and a text window is opened. If you for example are standing near one and receive a key and a text box opens up to explain what the key is for, then it would trigger the hint scout.

How was this tested?

Generating LTTP multiworlds, running server, connecting, ensuring hints are generated when appropriate

If this makes graphical changes, please attach screenshots.