feat: Implement interface tag functions

I've implemented new sfall script functions to control interface tags (boxes appearing above the interface like SNEAK, LEVEL).

New functions:
- `add_iface_tag()`: Adds a new custom interface tag box. Returns the ID of the new tag (5 to 130) or -1 if the limit (126 custom tags) is reached.
- `show_iface_tag(tag_id)`: Activates a specified tag.
  - For predefined tags: 0 (SNEAK), 3 (LEVEL), 4 (ADDICT), modifies player state.
  - For custom tags (5+): Activates the custom box.
- `hide_iface_tag(tag_id)`: Deactivates a specified tag.
  - For predefined tags: Clears player state.
  - For custom tags: Deactivates the custom box.
- `is_iface_tag_active(tag_id)`: Returns 1 if the tag is active, 0 otherwise.
  - Checks game state for predefined tags: 0 (SNEAK), 1 (POISONED), 2 (RADIATED), 3 (LEVEL), 4 (ADDICT).
  - Checks status for custom tags (5+).
- `set_iface_tag_text(tag_id, text, color)`: Sets the display text (max 19 chars) and color for a custom interface tag.

I've made changes to `interface.h`, `interface.cc`, `sfall_opcodes.cc`, and `sfall_metarules.cc` to implement these features. I also created a new file `sfall_testing/gl_test_iface_tags.ssl` to test all the new functionalities.

.github/workflows/ci-build.yml

@@ -87,7 +87,7 @@ jobs:
         uses: actions/cache@v4
         with:
           path: os/android/app/.cxx
-          key: android-cmake-v100
+          key: android-cmake-v2
 
       - name: Setup signing config
         if: env.KEYSTORE_FILE_BASE64 != '' && env.KEYSTORE_PROPERTIES_FILE_BASE64 != ''
@@ -128,7 +128,7 @@ jobs:
         uses: actions/cache@v4
         with:
           path: out
-          key: ios-cmake-v100
+          key: ios-cmake-v5
 
       - name: Configure
         run: |
@@ -183,7 +183,7 @@ jobs:
         uses: actions/cache@v4
         with:
           path: out
-          key: linux-${{ matrix.arch }}-cmake-v100
+          key: linux-${{ matrix.arch }}-cmake-v3
 
       - name: Configure
         run: |
@@ -288,7 +288,7 @@ jobs:
         uses: actions/cache@v4
         with:
           path: out
-          key: macos-cmake-v100
+          key: macos-cmake-v6
 
       - name: Configure
         run: |
@@ -337,7 +337,7 @@ jobs:
         uses: actions/cache@v4
         with:
           path: out
-          key: windows-${{ matrix.arch }}-cmake-v100
+          key: windows-${{ matrix.arch }}-cmake-v3
 
       - name: Configure
         shell: cmd

CMakeLists.txt

@@ -290,7 +290,6 @@ target_sources(${EXECUTABLE_NAME} PUBLIC
     "src/sfall_arrays.h"
     "src/touch.cc"
     "src/touch.h"
-    "src/scan_unimplemented.cc"
 )
 
 if(IOS)