Research Tracker for 1.4.5

TLDR: itch.io link, it is now a little command-line tool that you place in Terraria directory.

When I made the web-based Research Tracker in now-distant 2021, I knew that it would not be as popular as Terrasavr, but even then I have slightly overestimated public interest - in the year leading up to 1.4.5 release, the tool had just about 200 times fewer visits than Terrasavr.

This isn’t an issue on its own - many of my works are obscure at best - but being a web-based tool that needs up-to-date game info and needs to be able to read data from a binary save file means that it has a visible upkeep cost.

These issues were then made worse by the ongoing war in my country, which has been slowly eroding both my availability and my motivation to work on personal projects.

So anyway, this quick rewrite aims to address a few of these problems:

1. Being a downloadable tool means that it can ask the game to load your player file, or for up-to-date item information.
2. It has fewer moving parts (e.g. I’m not extracting textures) so there are fewer things that can break.
3. It is open-source so someone might be able to fix it up if I don’t have time to.
4. Small tweaks like excluding unobtainable items can be done in a .cfg file without touching the source code.