Rockbox

This only applies for recorders.
This ‘fixes’ the following feature requests: 665319,
642930

It annoyed me (es well as other ppl, see listed fr’s) either
have to unplug the dc or either go to the debug menu to
see how ‘far’ the battery is charged.

This patch add’s two strokes of each one second to the
existing animation, which will lead to the following output:

0%

33%
66%
100% like before up to here
actual %
actual %

each line representing one second of graphical display.
Charging procedure is ALWAYS shown in graphical, even if
the user opted for numerical display.

I know there are better methods to show that data. I
first tried to have a numerical display at the end of the
sequence, but it’s more work, in at least two file, so I
prefer to keep this patch small and easy, as well as
cheap in cpu-time.
The one who cares is able to see that information, the
one that doesn’t will still see some battery flickering
around.
I opted for that method after having a glance at my
cellular phone. It does excatly the same