Related to the previous commit, the debriefing should use the actual all-time stats from the pilot file instead of the active campaign stats. In multi, however, use the active campaign stats; because the debriefing can display stats for different players, and all-time stats are only available for the local player.
Also, clean up and slightly refactor `show_stats_label()` and `show_stats_numbers()`. Duplicate code has been removed, string output has been streamlined, and a few bugs with percentages (especially divide-by-zero checks) have been fixed.
The problem was caused by an oversight in 07107ce9b2 (namely, that changing some strings from being passed directly to string-formatting to being passed as arguments to a "%s" format-specifier meant that "%%" was no longer needed to get a plain "%" out the other side).
This allows to use standard TrueType Fonts for text rendering in FSO. It uses the NanoVG library which provides the ability of drawing 2D shapes. This library is used for most 2D operations now and can also be used directly by using the PathRenderer class.
Should resolve issues 1093428 and 1093429. These issues cannot cause crashes because the denominator is indirectly checked, but it's good to change to get coverity and other future diagnosing programs to stop yelling at us.
update hud_num_make_mono (& callers) to handle the font number
add partial support for specifying special char indexes for individual fonts
git-svn-id: svn://svn.icculus.org/fs2open/trunk/fs2_open@9985 387891d4-d844-0410-90c0-e4c51a9137d3
Goober5000