[fixed] Stone blobs will no longer take damage from fire

[mugg91]

Status

• READY: this PR is (to the best of your knowledge) ready to be incorporated into the game.

Description

Fixes #2310

Stone doors, obstructors(solid, in the current dev build) and possibly other stone blobs could take fire damage, if an adjacent wood back tile starts burning if a fire arrow is shot at it and the fire arrow expires.

This PR fixing it by changing StoneStructorHit.as to set fire damage to 0.
With the damage being 0, Stone.as won't do a stone hit sound either.

Tested in online, works.

[mugg91]

Before

StoneDoorBug.mp4

After

StoneDoorFix.mp4

The fire cross is odd, I might change it later on (should only do fire cross if the fire arrow is picked or stepped on twice).