Use 0.98.0 images to make NPC warriors the correct color.

Also ran optipng on the whole folder, which tweaked some of the red warriors too.

ChangeLog.rtro

@@ -8,6 +8,8 @@ Changes for top of trunk
 	* weapon/bow/compositebow.rtro.111.png,
 	  weapon/bow/huntersbow.rtro.111.png: Replace clones of bow image with versions from 0.95.8.
 	* weapon/sword/t_dagger.rtro.1*1.png: Replace duplicated dagger images with ones from 0.95.8.
+	* monster/humanoid/Class/Warrior/warrior_*.rtro.1*.png: Replace all except red warrior with
+	    proper-colored warrior from 0.98.0.
 
 2023-08-05 Daniel Hawkins
 	* flesh/dragon/dragon_black_scale.rtro.111.png,