ft_printf: Introduce bonuses

[berkekbgz]

No description provided.

[berkekbgz]

ft_printf is able to parse flags but cannot respond them at the current state of pr.

[berkekbgz]

bonus instructions of ft_printf evo page:

Simple flags management

Test the flags '.', '-' and 0.
Test %-d with INT_MIN.
Test the - flag with any value.
Test the 0 flag like %04d.
Test '.' with multiple precisions.
Compare return values with the original printf.
Rate it from 0 (failed) through 5 (excellent)

# + space

Check all conversions with '#', '+' and ' ' flags.
For each flag working, give points.
Rate it from 0 (failed) through 5 (excellent)