Divided the kernel into seperate distinct phases

The first stage after GRUB will be Pre-Kernel. This stage will organize the
information we receive from the bootloader. (in our case that will be grub)

The second stage is for now called early_main. The program will at this
point already be running in virtual higher-half / higher-quarter address space.
The goal of the second stage is to set up the kernel in such a way that we are
ready to jump in to usermode.

The third stage is for now called kernel_main. This stage will jump us into
usermode and load the startup programs.

- Added a GRUB entry for tests
- Started writing the pre-kernel stage
- Removed knowledge of multiboot from early_main
- Edited the linkerscript to link variables in pre-kernel to
	lower address space. ( from 1MB and up)

source/kernel/kernel.h

@@ -3,19 +3,16 @@ extern "C"
 {
    #include "Lib/string.h" 
 }
-
 #include "definitions.h"
 
 #include "Drivers/VGA/VBE.h"
 #include "Terminal/kterm.h"
 
-#include "multiboot.h"
 #include "bootinfo.h"
 
 #include "Memory/PhysicalMemoryManager.h"
 #include "Memory/memoryinfo.h"
 #include "Memory/VirtualMemoryManager.h"
-#include "KernelLauncher/bootcheck.h"
 
 #include "Memory/GDT/gdtc.h"
 #include "Interrupts/idt/idt.h"
@@ -27,17 +24,15 @@ extern "C"
 
 #include "time.h"
 #include "SuperVisorTerminal/superVisorTerminal.h"
+#include "PreKernel/bootstructure.h"
 
 #define CHECK_FLAG(flag, bit) ( flag & (1 << bit ))
 #define PANIC(message) {return;} 
 
-
 void map_multiboot_info_structure(unsigned long addr);
 
-extern "C" void kernel_main (BootInfo* bootinfo);
+extern "C" void kernel_main ();
 
-extern "C" const void* kernel_begin;
-extern "C" const void* kernel_end;
 
 extern "C" uint32_t boot_page_directory;
 extern "C" uint32_t multiboot_page_table;