Added FDC driver and made easy usb booting on real machine

	Rolled out version 0.0.2 Alpha testing

	Implemented floppy disk controller (FDC) driver that can read and write to a floppy

		has primitive read/write utilities

		has primitive persistent storage implementations on a second floppy image

		uses DMA to read/write data from/to the floppy

	Fixed shell commands

		improved "find" command

			made find function recursive to be able to find files not in the current
				directory

			added functionality where find prints the directory path along with the
				file name it found, used to distinguish where the file has been
				found in the directory

		fixed "ls" command

			fixed a bug with listing the contents in a specified directory

	Added a more user-friendly way to boot from a physical machine

		made a shell script "usb_make.sh" that along with specific arguments passed
			creates a bootable usb

	Organized README files

		created separate directory for licenses, readme, and usage files