Added Memory Paging + Formating Fixes

Memory paging was "fixed", there was previously a stub because I was
working out some compilation issue. Turns out, I had extern keyword
called to the structs. Stupidly, I forgot to declare the struct in the
header the whole time. Luckily that worked itself out, and now vga
memory is mapped.

kernel/init/kernel.c

@@ -3,6 +3,7 @@
 #include <stddef.h>
 #include <bootloader.h>
 #include <drivers/video/framebuffer.h>
+#include <mm/paging.h>
 
 static void
 hcf(void)
@@ -20,6 +21,7 @@ kernel_main(void)
 	
         /* Initialize framebuffer console */
         fb_init();
+        map_vga_memory();
         
         /* Test print */
         fb_puts("Hello World\n");