qtcreator
Fix gitignore
Fix: Before this commit the program  displayed the total CPU time used by the principal cicle, so when a chenged the output time the programm displayed the new CPU time + the precedent. But this is not what i want, so i subtract to the current CPU time the precedent.
Change the color backgroud an the color of the figure

Signed-off-by: dmike <cipmiky@gmail.com>