Start setting up texture animation for jak 3. (#3524)

For now, this just adds sky (clouds and fog), darkjak, and skull gem.

There are some unknown issues with drawing the skull gems still, but I
think it's unrelated to texture animations.

Also fixes https://github.com/open-goal/jak-project/issues/3523

common/texture/texture_slots.cpp

@@ -42,7 +42,9 @@ std::vector<std::string> jak2_slots = {
     "cas-toxic-slime-scroll-dest",
 };
 
-std::vector<std::string> jak3_slots = {};
+std::vector<std::string> jak3_slots = {
+    "skull-gem-dest", "jakc-arm", "jakc-eyebrow", "jakc-face", "jakc-finger", "jakc-hair",
+};
 
 }  // namespace