switch to android-game-sdk-rs submodule at v2.0.2

Also includes our patches on top (branch android-activity-2.0.2). This
is mainly to test to make sure everything is still working. We will
switch to the android-activity-4.0.0 branch when we're done

Signed-off-by: William Casarin <jb55@jb55.com>

Author: jb55

.gitmodules

@@ -0,0 +1,3 @@
+[submodule "android-activity/game-activity-csrc"]
+	path = android-activity/android-games-sdk
+	url = https://github.com/jb55/android-games-sdk-rs

android-activity/android-games-sdk

@@ -1,41 +1,48 @@
 #![allow(dead_code)]
 
 fn build_glue_for_game_activity() {
+    let activity_basepath = "android-games-sdk/game-activity/prefab-src/modules/game-activity/include";
+    let textinput_basepath = "android-games-sdk/game-text-input/prefab-src/modules/game-text-input/include";
+
     for f in [
         "GameActivity.h",
         "GameActivity.cpp",
         "GameActivityEvents.h",
         "GameActivityEvents.cpp",
         "GameActivityLog.h",
     ] {
-        println!("cargo:rerun-if-changed=game-activity-csrc/game-activity/{f}");
+        println!("cargo:rerun-if-changed={activity_basepath}/game-activity/{f}");
     }
     cc::Build::new()
         .cpp(true)
-        .include("game-activity-csrc")
-        .file("game-activity-csrc/game-activity/GameActivity.cpp")
-        .file("game-activity-csrc/game-activity/GameActivityEvents.cpp")
+        .include("android-games-sdk/include")
+        .include(activity_basepath)
+        .file(format!("{activity_basepath}/game-activity/GameActivity.cpp"))
+        .file(format!("{activity_basepath}/game-activity/GameActivityEvents.cpp"))
         .extra_warnings(false)
         .cpp_link_stdlib("c++_static")
         .compile("libgame_activity.a");
 
     for f in ["gamecommon.h", "gametextinput.h", "gametextinput.cpp"] {
-        println!("cargo:rerun-if-changed=game-activity-csrc/game-text-input/{f}");
+        println!("cargo:rerun-if-changed={textinput_basepath}/game-text-input/{f}");
     }
     cc::Build::new()
         .cpp(true)
-        .include("game-activity-csrc")
-        .file("game-activity-csrc/game-text-input/gametextinput.cpp")
+        .include("android-games-sdk/include")
+        .include(activity_basepath)
+        .file(format!("{textinput_basepath}/game-text-input/gametextinput.cpp"))
         .cpp_link_stdlib("c++_static")
         .compile("libgame_text_input.a");
 
     for f in ["android_native_app_glue.h", "android_native_app_glue.c"] {
-        println!("cargo:rerun-if-changed=game-activity-csrc/native_app_glue/{f}");
+        println!("cargo:rerun-if-changed={activity_basepath}/game-activity/native_app_glue/{f}");
     }
+    
     cc::Build::new()
-        .include("game-activity-csrc")
-        .include("game-activity-csrc/game-activity/native_app_glue")
-        .file("game-activity-csrc/game-activity/native_app_glue/android_native_app_glue.c")
+        .include("android-games-sdk/include")
+        .include(activity_basepath)
+        .include(format!("{activity_basepath}/game-activity/native_app_glue"))
+        .file(format!("{activity_basepath}/game-activity/native_app_glue/android_native_app_glue.c"))
         .extra_warnings(false)
         .cpp_link_stdlib("c++_static")
         .compile("libnative_app_glue.a");