MILESTONE3

added features:

• improving the operating system modularity
• adding text, folderIO, fileIO, and math module
• adding rm to shell
• adding ./ to shell
• adding mkdir to shell
• adding mv to shell
• adding cp to shell

MILESTONE2

added features:

• adding readSector, writeSector
• adding readFile, writeFile
• adding loadFile
• adding shell to kernel.c
• adding help, cd, ls, ln, cat command to shell.c

MILESTONE1

Initial release

• add readstring, printstring, mod, div, clear, asciiART feature