Kernel: Implement very simple kernel module loading

It's now possible to load a .o file into the kernel via a syscall.
The kernel will perform all the necessary ELF relocations, and then
call the "module_init" symbol in the loaded module.

Kernel/build-root-filesystem.sh

@@ -134,11 +134,14 @@ ln -s SoundPlayer mnt/bin/sp
 ln -s Help mnt/bin/help
 ln -s Browser mnt/bin/br
 ln -s HackStudio mnt/bin/hs
+ln -s modload mnt/bin/m
 echo "done"
 
 mkdir -p mnt/boot/
 cp kernel mnt/boot/
 
+cp TestModule.o mnt/
+
 # Run local sync script, if it exists
 if [ -f sync-local.sh ]; then
     sh sync-local.sh