New sand and water sprites (ported from Bay) (#75254)

## About The Pull Request
Ports over new water sprites originally made by Flashkirby in
https://github.com/Baystation12/Baystation12/pull/3724

Also made some code adjustments because they don't have that weird
in-between sprite that the old water had.

## Why It's Good For The Game

![image](https://user-images.githubusercontent.com/66640614/236734326-fd492313-270e-4ba5-ae68-3e5adf8d3c89.png)
This could be us but you're still using those jank-ass old water sprites
:\

## Changelog
🆑 Tattle, Flashkirby
sound: increased the volume of the water step noises
image: ported over bay's water sprites
/🆑

---------

Co-authored-by: tattle <article.disaster@gmail.com>

tools/UpdatePaths/Scripts/75254_beach_coast.txt

@@ -0,0 +1,11 @@
+# These aren't going to be a perfect 1:1, adjust your maps accordingly
+
+/turf/open/water/beach/biodome : /turf/open/water/beach{@OLD}
+
+/turf/open/misc/beach/coastline_b : /turf/open/misc/beach/coast{@OLD}
+/turf/open/misc/beach/coastline_t : /turf/open/misc/beach/sand{@OLD}
+
+/turf/open/misc/beach/coastline_t/sandwater_inner : /turf/open/misc/beach/coast/corner{@OLD}
+
+/turf/open/floor/holofloor/beach/coast_t : /turf/open/floor/holofloor/beach/coast{@OLD}
+/turf/open/floor/holofloor/beach/coast_b : /turf/open/floor/holofloor/beach/water{@OLD}