Kernel: Move Interruptable from InterruptController.h to its own file

kernel/include/kernel/Interruptable.h

@@ -0,0 +1,23 @@
+#pragma once
+
+namespace Kernel
+{
+
+	class Interruptable
+	{
+	public:
+		void set_irq(int irq);
+		void enable_interrupt();
+		void disable_interrupt();
+
+		virtual void handle_irq() = 0;
+
+	protected:
+		Interruptable() = default;
+		~Interruptable() {}
+
+	private:
+		int m_irq { -1 };
+	};
+
+}