fim: add "hf" PACKAGECONFIG option

This embedds a console font in fim executable.

To use it, don't forget to define FBFONT with the special value:
export FBFONT='fim://

'

Option is enabled by default because kdb-consolefonts package
only provides PSF version 2 files (fim only support version 1 and creates an error).

Benchmarked fim executable size: +6Kb (x86_64) and +7Kb (armv7).

Signed-off-by: Matthieu Crapet <Matthieu.Crapet@ingenico.com>
Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>