Add missing 'static' to game-internal declarations.

Another thing I spotted while trawling the whole source base was that
a couple of games had omitted 'static' on a lot of their internal
functions. Checking with nm, there turned out to be quite a few more
than I'd spotted by eye, so this should fix them all.

Also added one missing 'const', on the lookup table nbits[] in Tracks.

1 files changed, 2 insertions, 2 deletions

diff --git a/map.c b/map.c
index 2e64479..ac0bea1 100644
--- a/map.c
+++ b/map.c
@@ -2624,7 +2624,7 @@ static void game_set_size(drawing *dr, game_drawstate *ds,
     ds->bl = blitter_new(dr, TILESIZE+3, TILESIZE+3);
 }
 
-const float map_colours[FOUR][3] = {
+static const float map_colours[FOUR][3] = {
 #ifdef VIVID_COLOURS
     /* Use more vivid colours (e.g. on the Pocket PC) */
     {0.75F, 0.25F, 0.25F},
@@ -2638,7 +2638,7 @@ const float map_colours[FOUR][3] = {
     {0.55F, 0.45F, 0.35F},
 #endif
 };
-const int map_hatching[FOUR] = {
+static const int map_hatching[FOUR] = {
     HATCH_VERT, HATCH_SLASH, HATCH_HORIZ, HATCH_BACKSLASH
 };