#3:LESS mixing: fibo font size maker

First version of the fibo font size generator given the starting point.

Signed-off-by: Amin Meyghani <amin.meyghani@quovo.com>
#3: LESS mixing: shorter fibo font size maker

A shorter version of the fibo font size maker.

Signed-off-by: Amin Meyghani <amin.meyghani@quovo.com>
#3: LESS mixing: more general fibo maker

The 'make-fibo-for` mixin can take the class name as input and the units as well. The value for % should be passed as a string for it to work if the % unit is needed.

Signed-off-by: Amin Meyghani <amin.meyghani@quovo.com>