feat(pretty-print): Just casually implemented the graphviz representation of parsed AST

src/utils/ast/ast.h

@@ -70,4 +70,9 @@ struct ast *ast_create_if(struct ast *condition, struct ast *then_clause,
  */
 struct ast *ast_create_cmd(struct list *cmd);
 
+/**
+ * Prints the Graphviz DOT representation of the given AST to stdout.
+ */
+void ast_print_dot(struct ast *ast);
+
 #endif /* ! AST_H */