new FSModTool build stuff

[orangepeelbeef]

• added missing folder to kf1.csv
• added warning message and except path for MIMList that is not defined but present in kf1.csv
• updated the github link to the correct fsmod committee url
• add build steps to FSModTool.pro
• completely redo the github actions to utilize the .pro file
• set releases name/version based on git tag rather than just the build

[IvanDSM]

Hey, I'm sorry I didn't catch this PR earlier. This is great work! I have been slowly working in private on a essentially a ground-up rebuild of FSMT to try and create a better base for the project than what I had originally laid down.

There are things that I don't think we'd be able to carry over, like the qmake .pro changes since I've started moving the project to CMake. I'm now also using Qt 6 so we'd have to drop linuxdeployqt and try to come up with a different Linux packaging strategy. I'm honestly leaning towards just a good old binary zip/tarball, but I'd have to study how this would go. However, I do believe we can carry over a decent portion of your work on the GitHub Actions side of things!

I understand that the news of this rebuild might be very frustrating to hear, and I do apologize for how I've handled the project... Throughout the years and especially with the KFMT -> FSMT move I've had a bad habit of keeping development silo'd in my local machine, which is terrible for cooperating and anyone wanting to contribute.

If you'd still be interested in contributing, I could upload my local tree (still super barebones) under a different branch and we could discuss things via the FSMT Discord server. I have been stuck for a long while trying to brainstorm what would be a better architecture for file handling, etc so any help would be appreciated!