tr2/data: fix Tibetan Foothills drawbridge triggers

This injects flipmap dummy triggers for the drawbridge in Tibetan
Foothills, plus the key trigger.

Resolves #1744.

data/tr2/ship/cfg/TR2X_gameflow.json5

@@ -42,6 +42,9 @@
 
         // 11. Tibetan Foothills
         {
+            "injections": [
+                "data/injections/tibet_fd.bin",
+            ],
             "object_strings": {
                 "O_TIGER": "Snow Leopard",
             },

docs/tr2/CHANGELOG.md

@@ -13,6 +13,7 @@
 - fixed some music tracks not playing if they were the last played track and the level had no ambience (#1899, regression from 0.2)
 - fixed wrongly calculated trapdoor size that could affect custom levels (#1904)
 - fixed one of the collapsible tiles in Opera House room 184 not triggering (#1902)
+- fixed being unable to use the drawbridge key in Tibetan Foothills after the flipmap (#1744)
 
 ## [0.6](https://github.com/LostArtefacts/TRX/compare/tr2-0.5...tr2-0.6) - 2024-11-06
 - added a fly cheat key (#1642)

docs/tr2/README.md

@@ -41,6 +41,7 @@ decompilation process. We recognize that there is much work to be done.
 - fixed Lara getting stuck in her hit animation if she is hit while mounting the boat or skidoo
 - fixed the following floor data issues:
     - **Opera House**: fixed the trigger under item 203 to trigger it rather than item 204
+    - **Tibetan Foothills**: added missing triggers for the drawbridge in room 96 (after the flipmap)
 
 #### Cheats
 - added a fly cheat