Compress the graphics (mostly), fix potential vram memcpy issue

This greatly decreases the ROM size, from 245 KB to 198 KB with no visual
changes (that I am aware of)

Changes:
- Enable compression on every graphic but the Pokemon sprites (which are
  too large for the GBA to decompress).
- Change grit from emitting .s files to .c files so GCC can strip unused
  palettes and maps
- Fix the empty tiles
- Trim down the font to skip 00-1F and 80-FF which were all zeroes
  - needs a slight workaround because the Pokemon name display was printing
    an invisible FF byte
- Switch memcpy to tonccpy which is vram safe
- Limit palette sizes.

Signed-off-by: easyaspi314 <6258309+easyaspi314@users.noreply.github.com>

source/box_menu.cpp

@@ -114,17 +114,16 @@ int Box_Menu::box_main(Pokemon_Party party_data)
             Simplified_Pokemon curr_pkmn = party_data.get_simple_pkmn(index);
             if (curr_pkmn.is_valid)
             {
-                char nickname[11] = {' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', ' ', '\0'};
+                tte_set_pos(40, 72);
                 for (int i = 0; i < 10; i++)
                 {
-                    nickname[i] = gen_3_Intern_char_array[curr_pkmn.nickname[i]];
                     if (curr_pkmn.nickname[i] == 0xFF)
                     {
-                        i = 10;
+                        break;
                     }
+                    tte_putc(gen_3_Intern_char_array[curr_pkmn.nickname[i]]);
                 }
-                tte_set_pos(40, 72);
-                tte_write(nickname);
+                
                 if (curr_pkmn.is_shiny)
                 {
                     tte_set_pos(40, 80);