Added basic autocompletion with GNU readline. Can't get command autocompletion to work.
Command completion works now.
Avoid strcmp as it is buggy when using compiler optimisation.
Fixed bug causing segfault when using g++ -Ofast
using define of command lenght
Uses sizeof instead of define
Moved most autocompletion function to seperate file.
Can't move customCompletion()
deleted file added by mistake