feat: cleanup init code, small other refactors

include/myke/util/init.h

@@ -8,13 +8,23 @@
 #include <sys/types.h>
 #include <myke/driver.h>
 
+enum init_stage {
+    INIT_STAGE_EARLY_BOOT_0, // id mapped, high memory, no malloc
+    INIT_STAGE_EARLY_BOOT_1, // memory available, no tasking
+    INIT_STAGE_LATE_BOOT, // time source, memory, most basic hardware available
+    INIT_STAGE_PRE_TASKING, // just before tasking is ready
+    INIT_STAGE_AFTER_BOOT_PRE_INIT, // tasking just started
+    // todo define later stages
+};
+
 struct init {
     const char *name;
+    enum init_stage stage;
     void (*init)();
 };
 
 #define INIT_FUNCTION(order) GENERIC_DRIVER(init, order)
 
-void init_execute_all();
+void init_execute_all(enum init_stage stage);
 
 #endif //NEW_KERNEL_INIT_H