KERNEL: Improved Physical memory allocation code / Code refactor

* Moved tests to a different folder
* Adjusted the memory map address locations
* Improved readability of `kernel.cpp`

source/kernel/supervisorterminal/superVisorTerminal.h

@@ -4,5 +4,6 @@
 #include "../drivers/pit/pit.h"
 #include "../drivers/ps-2/keyboard.h"
 #include "../memory/PhysicalMemoryManager.h"
+#include "../lib/string.h"
 
 void startSuperVisorTerminal();