Kernel: Replace PIC with APIC

If APIC/IOAPIC is not found, we fallback to PIC

Interrupts don't seem to work on real hardware (?)

kernel/include/kernel/APIC.h

@@ -0,0 +1,13 @@
+#pragma once
+
+#include <stdint.h>
+
+namespace APIC
+{
+
+	void Initialize();
+	void EOI();
+	void GetISR(uint32_t[8]);
+	void EnableIRQ(uint8_t irq);
+
+}