Menu graphics, new mouse, tile tweaks, and other graphical changes. (#3306)

* update engine graphics

* add a handful of assets form old pr

* remove shadow-y things from snow backgrounds

* Update tiles.strf

* add more wood tiles

* Create wood-threetiles.png

* grey pipes are real again

* Add margin to the checkbox icon

* Revert changing `score-backdrop.png`

* Rework `big_snowball's` sprites

* Tweak `rocks-snow.png`

[ci skip]

* add extra rock tiles [ci skip]

* New toad Larry Koopa 64 DS Hacker

also start work on adding in all the industrial tiles

* Update ghost particles

* Update ghost particles' icon

* finish industrial tiles [ci skip]

* brumoent -> bruhmoent

* finish up cursor, misc changes

* add some stuff i forgot about

* Remove unnecessary additions

* Update industrial.png

* Update industrial.png

* Update background2.png

---------

Co-authored-by: xornamed <[email protected]>

Author: Frostwithasideofsalt

data/AUTHORS

@@ -1,6 +1,7 @@
 == Images ==
 
-Most images were created either by grumbel or gwater. Check the log for details.
+Most graphics as of 0.7 were created by Rustybox, Eauix, WeLuvGoatz, FrostC and Bruhmoent. Check the log for details.
+
 
 * images/background/icecliffs/icecliffs-*.png - Jason Lavallée, dual-licensed: GPL version 2 or later and CC-BY-SA
 * images/background/block-snow-*.png - Jason Lavallée, dual-licensed: GPL version 2 or later and CC-BY-SA