build: submodules for libpasada, librubberband. Add librubberband.

.gitmodules

@@ -0,0 +1,6 @@
+[submodule "app/src/main/cpp/rubberband"]
+	path = app/src/main/cpp/librubberband
+	url = https://donkey.abanbytes.eu/david/librubberband.git
+[submodule "app/src/main/cpp/libpasada"]
+	path = app/src/main/cpp/libpasada
+	url = https://donkey.abanbytes.eu/david/libpasada.git

app/src/main/cpp/CMakeLists.txt

@@ -13,6 +13,7 @@ cmake_minimum_required(VERSION 3.22.1)
 project("lockstep-native")
 
 add_subdirectory(libpasada/pasada-lib)
+add_subdirectory(librubberband)
 
 # Creates and names a library, sets it as either STATIC
 # or SHARED, and provides the relative paths to its source code.
@@ -57,6 +58,7 @@ target_include_directories(${CMAKE_PROJECT_NAME} PRIVATE libpasada/pasada-lib/in
 target_link_libraries(${CMAKE_PROJECT_NAME}
     # List libraries link to the target library
     pasada
+    rubberband
     oboe::oboe
     mpg123
     android

app/src/main/java/at/lockstep/app/MediaStoreBenchmarkActivity.java

@@ -1,7 +1,5 @@
 package at.lockstep.app;
 
-import static androidx.activity.result.ActivityResultCallerKt.registerForActivityResult;
-
 import android.app.Activity;
 
 import android.Manifest;
@@ -12,8 +10,6 @@ import android.os.SystemClock;
 import android.provider.MediaStore;
 import android.widget.TextView;
 
-import androidx.activity.result.ActivityResultLauncher;
-import androidx.activity.result.contract.ActivityResultContracts;
 import androidx.core.content.ContextCompat;
 
 import java.util.ArrayList;
@@ -81,7 +77,6 @@ public class MediaStoreBenchmarkActivity extends Activity {
             permission = Manifest.permission.READ_EXTERNAL_STORAGE;
         }
 
-        //permissionLauncher.launch(permission);
         requestPermissions(
                 new String[]{ permission },
                 REQUEST_READ_PERMISSION