GFX: fteqw levelshots

[lavenderdotpet]

Description of Changes

---

adds levelshots a quake 3 standard that shows a preview of the level before loading into the map

Visual Sample

---

Checklist

---

• I have read the LibreQuake contribution guidelines
• I have thoroughly tested my changes to the best of my ability
• I confirm I have not contributed anything that would impact LibreQuake's licensing and usage
• This Pull Request fixes a critical issue that should be reviewed and merged as soon as possible

[Nolcoz]

They look really good

[kia100]

Is it possible to just use a still camera and disable animated textures in-game? Higher screen resolutions would require higher-res PNGs.

[lavenderdotpet]

@kia100

i used ironwail for the screenshots
which has the sv_freezenonclients command that freezes everything but the players movement so u can lock the position of everything including animated textures and the put the player camera where u want the shot to be

ive got saves of all the shots i made so i can load those and retake the shot