Add initial Pokemon Red wrapper code

Author: Maciek Baron

pyboy/plugins/game_wrapper_pokemon_red/__init__.py

@@ -0,0 +1 @@
+from .wrapper import GameWrapperPokemonRed

pyboy/plugins/game_wrapper_pokemon_red/utils.py

@@ -0,0 +1,17 @@
+from .constants import ASCII_DELTA
+
+def get_character_index(character):
+    if character == ' ':
+        return 0x7F
+    if character == '?':
+        return 0xE6
+    if character == '!':
+        return 0xE7
+    if character == 'é':
+        return 0xBA
+
+    index = ord(character)
+    if index > 47 and index < 58:
+        # number
+        return index + 197
+    return index + ASCII_DELTA