Improved build system

Added new entries to .gitignore
Moved away from source directory as central spot for all source code

kernel/drivers/pit/pit.h

@@ -0,0 +1,18 @@
+#pragma once 
+#include <stdint.h>
+#include "../io/io.h"
+#define PIT_DATA_0 0x40
+#define PIT_DATA_1 0x41
+#define PIT_DATA_2 0x42
+#define PIT_COMMAND 0x43
+
+
+extern uint32_t pit_tick;
+
+
+void pit_initialise();
+
+
+void get_pit_count();
+
+void set_pit_count();