All: Fix a lot of compiler warnings from header files

While reworking build system, header files started to report warnings.

kernel/include/kernel/Interruptable.h

@@ -14,7 +14,7 @@ namespace Kernel
 
 	protected:
 		Interruptable() = default;
-		~Interruptable() {}
+		virtual ~Interruptable() {}
 
 	private:
 		int m_irq { -1 };