Adventure two 25% (#387)

* identify transition bug

* Document fog system

* Label fogchanger attributes

* and more

* anti aliasing

* name some object vars

* block the racer inputs

* Update unknown_0255E0.c

* Update README.md

* Update src/object_functions.c

* I just did thing I guess???

* me when I realise almost all the pass through discs are just copy and pasted code.

* YOU'RE PUSHING THEM?!?!

bruh bruh bruh bruh

* I guess I'm in the object naming rabbit hole now

wow maybe I'll actually get these looking good 😳

* i did frogs

* got it

* Quick fixes

include/enums.h

@@ -159,7 +159,7 @@ typedef enum MiscAsset {
     MISC_ASSET_UNK35,
     MISC_ASSET_UNK36,
     MISC_ASSET_UNK37,
-    MISC_ASSET_UNK38,
+    MISC_ASSET_RACER_HITBOX_SIZE,
     MISC_ASSET_UNK39,
     MISC_ASSET_UNK3A,
     MISC_ASSET_UNK3B,
@@ -188,11 +188,11 @@ typedef enum SurfaceType {
     SURFACE_SAND,
     SURFACE_ZIP_PAD,
     SURFACE_STONE,
-    SURFACE_UNK05,
-    SURFACE_UNK06,
-    SURFACE_UNK07,
-    SURFACE_UNK08,
-    SURFACE_UNK09,
+    SURFACE_EGG_SPAWN,
+    SURFACE_EGG_01,
+    SURFACE_EGG_02,
+    SURFACE_EGG_03,
+    SURFACE_EGG_04,
     SURFACE_FROZEN_WATER,
     SURFACE_UNK0B,
     SURFACE_TAJ_PAD,