CHANGE_COLOR palette option adjustments

It was too early to call the windowport change_color() routine
while processing the config file. The windowport was not yet
fully operational.

Now the palette option processing will just place the rgb
value into the appropriate ga.altpalette[CLR_MAX] entry.

init_sound_disp_gamewindows(void) [allmain.c] calls
change_palette() [coloratt.c] and it will call the windowport
change_color() function for each ga.altpalette[] entry that
has been set.

Notes:
The rgb values stored in ga.altpalette[] have the NH_ALTPALETTE bit set
so that the rgb value of 0 can be stored and be distinguishable from
a "not set" entry.

The NH_ALTPALETTE bit is cleared from the rgb value in change_palette()
prior to calling the windowport change_color() function.

The syntax for palette is colorname/r-g-b.
For example: palette:black/12-12-12

colorname must be one of the NH_BASIC_COLOR names or a suitable
alias for one of those 16 entries.

Some of the windowport CHANGE_COLOR functions had the wrong parameters,
perhaps due to bitrot. Those have been corrected to match the prototype.

sys/windows/consoletty.c

@@ -293,6 +293,27 @@ char erase_char, kill_char;
 #define DEFTEXTCOLOR ttycolors[7]
 static INPUT_RECORD bogus_key;
 
+/*
+Windows console palette:
+Color Name      Console Legacy RGB Values  New Default RGB Values
+BLACK           0,0,0	                   12,12,12
+DARK_BLUE       0,0,128                    0,55,218
+DARK_GREEN      0,128,0                    19,161,14
+DARK_CYAN       0,128,128                  58,150,221
+DARK_RED        128,0,0                    197,15,31
+DARK_MAGENTA    128,0,128                  136,23,152
+DARK_YELLOW     128,128,0                  193,156,0
+DARK_WHITE      192,192,192                204,204,204
+BRIGHT_BLACK    128,128,128                118,118,118
+BRIGHT_BLUE     0,0,255                    59,120,255
+BRIGHT_GREEN    0,255,0                    22,198,12
+BRIGHT_CYAN     0,255,255                  97,214,214
+BRIGHT_RED      255,0,0                    231,72,86
+BRIGHT_MAGENTA  255,0,255                  180,0,158
+BRIGHT_YELLOW   255,255,0                  249,241,165
+WHITE           255,255,255                242,242,242
+*/
+
 #ifdef VIRTUAL_TERMINAL_SEQUENCES
 long customcolors[CLR_MAX];
 const char *esc_seq_colors[CLR_MAX];
@@ -1979,6 +2000,21 @@ tty_ibmgraphics_fixup(void)
 #endif /* VIRTUAL_TERMINAL_SEQUENCES */
 }
 
+#ifdef CHANGE_COLOR
+#ifdef NO_TERMS
+void
+tty_change_color(int color UNUSED, long rgb UNUSED, int reverse UNUSED)
+{
+}
+
+char *
+tty_get_color_string(void)
+{
+    return ("");
+}
+#endif
+#endif /* CHANGE_COLOR */
+
 #ifdef PORT_DEBUG
 void
 win32con_debug_keystrokes(void)
@@ -3896,5 +3932,4 @@ nh340_checkinput(
     }
     return mode ? 0 : ch;
 }
-
 #endif /* WIN32 */