use string identifiers for events ...

(some rework of the string saving system was required)

use stringmap for communication between processes

add stringmap insert and read length functions

mov syscall handlers to different files

add events

add a static libary and fix interrupts

enable subscribing to an interrupt and set up the PIC

enable interrupts

enable freeing of memory

add passing data to a syscall

add the ability to create multiple services and repair inter-service communication

add port IO syscalls

clean up syscall code

organize services and their providers

enter usermode for user processes and start with some memory protection

read elf data into a new page table

read the initrd file to get the memory location of the first userspace program

find the initrd in the multiboot 2 information structure

add basic kernel page management

initial commit