hlib: fix #5: weird printf behaviour

fix sprintf problems

ioManager: refactor logging function

scisi: add dummy setup function

ps2kb: support shift modifier

hlib: monopolize checkFocus function

move hlib directory to src/

use ld-level allocation of allocation data object for all programs and kernel

keyboard: add none modifiers for keycodes without modified variants

add more keycodes

hid, keyboard: pass USB keycode to keyboard service

add keycodes.h

hlib: add listClear function

stdio: add %p insert for padding

add fork system call

kernel await / fire event: add code to wait for specific event

usb: hlib: use "unsafe" direct event calls to work without strings

usb refactoring: no more xhci-specific code in main usb.h file

xhci refactoring: sperate out all xhci-related code to its own directory

use sleep function for xhci driver waiting for the controller to start

add sleep function to PIT driver

try initializing xhci hub

add system call to retrieve the physical location of a virutal address

add lspci user programm

move 'gets'-functionality to ioManager to simplify the shell source code

add await syscall

check if a message should be printed to the main vga screen by checking if any syscall in the 'syscall stack' is the foreground process

remove old log function, make \n mandatory for printing a new line

route the shell service to the vga output

rewrite general IO using an IO-manager