Kernel Heap

Implement Kernel Heap.

Details:

Implement kernel heap. This is required for better memory management.

Usage:

To build project

	# -s for make quite
	$ ./build.sh -s

To run project

	$ ./run.sh

To build with debug symbols

	# -s for make quite, -g for debug
	$ ./build.sh -s -g

To run project in debug mode

	$ ./run.sh -d

Note: Make sure to build with debug symbols

	$ gdb or gdbtui
	$ target remote localhost:1234
	$ file build/bin/kernel.elf  (loads debugging symbols from the file)