build: move map & rng logic to their own libraries

Signed-off-by: NotAShelf <raf@notashelf.dev>
Change-Id: I1802469f3baff4576f61accfb5a197d86a6a6964

src/utils.h

@@ -1,10 +0,0 @@
-#ifndef UTILS_H
-#define UTILS_H
-
-// Clamp value between min and max
-int clamp(int value, int min, int max);
-
-// Check if coordinates are within map bounds
-int in_bounds(int x, int y, int width, int height);
-
-#endif  // UTILS_H