Mark the last commit before the 2023 "Revive" activity

We hope for a more active period for Terasology again, possibly including
drastic cuts of code, major rewrites, and other disruptive activities.

On 2023-07-02, the following repositories were marked with this tag:
- the engine repository MovingBlock/Terasology
- 148 modules of the "Omega lineup" in Terasology/*
- two libraries, MovingBlocks/TeraNUI and MovingBlocks/JNLua

release: 0.3.2

release: 0.3.1

Release version 0.3.0