Disable debug
Use string instead of cstring
Improve error reporting of exec command
Disable double messages
Error reporting in user space
Prototype of std::expected
Move implementation to source file
Improve the interface with std::expected
Add helper types
Use helper types
Improve the shell
Complete the shell
Fix memory issues
Add system class for the control of the terminal
Review makefiles
New user program: cpuid
Remove programs
Add printf support to the user lib
Continue cpuid implementation
Merge branch 'develop' of github.com:wichtounet/thor-os into develop