headers: Sync with Godot 3.1.2

Commit authored long after 3.1.2 was released, just adding this here for the
sake of not having missed a release, if anyone needs its headers.
This commit is contained in:
Rémi Verschelde
2021-09-27 13:06:11 +02:00
parent 2fb605531a
commit 290d629f14