Replace python scripts for packing species archives with C++

This new code is responsible for packing the following archives:

- `pl_personal` -> basic information for each species: stats, types, etc.
- `evo` -> evolution lines for each species
- `wotbl` -> by-level learnsets for each species
- `ppark` -> catching show data for each species
- `height` -> y-offsets for front and back sprites for each species
- `pl_poke_data` -> sprite-rendering data for each species: animation
  ID, frame data, shadow size and offsets, etc.

Additionally, the following headers are generated:

- `res/pokemon/tutorable_moves.h` -> A listing of moves taught by each
  tutor and how much each move costs to be tutored
- `res/pokemon/species_learnsets_by_tutor.h` -> An array of bitmasks for
  each species designating which moves can be tutored to that species

.gitignore

@@ -19,6 +19,7 @@
 /subprojects/knarc/
 /subprojects/narc/
 /subprojects/metang/
+/subprojects/rapidjson-*/
 
 # CLion folders
 .idea/

asm/macros/scrcmd.inc

@@ -1,9 +1,9 @@
 #include "generated/items.h"
 #include "generated/moves.h"
 #include "generated/species.h"
+#include "generated/catching_show_points_category.h"
     .include "macros/movement.inc"
     .include "consts/badges.inc"
-    .include "consts/catching_show.inc"
     .include "consts/game_records.inc"
     .include "consts/journal.inc"
     .include "consts/map.inc"

consts/meson.build

@@ -1,9 +1,11 @@
+# This must be moved here during the refactor to move all constants to metang.
+constgen_py = find_program('constgen_py', native: true)
+
 consts_manifest_basenames = [
     'badges',
     'battle',
     'battle_subscripts',
     'btlcmd',
-    'catching_show',
     'game_records',
     'gender',
     'journal',
@@ -14,8 +16,6 @@ consts_manifest_basenames = [
     'poketch',
     'scrcmd',
     'sdat',
-    'shadows',
-    'tm_learnset',
     'trainer',
     'trainer_ai',
 ]