Kernel Size Awareness

Modified the linker script + Added an init function to System.pas to be called at system boot, this allows tracking of the Kernel start & end addresses, and thus, allows us to calculate the kernel size.

src/kernel.pas

@@ -125,6 +125,9 @@ var
    HM              : PHashMap;
    
 begin
+     { Init the base system unit }
+     System.init();
+
      { Serial Init }
      serial.init();