Add Android project structure and GitHub Actions workflow for APK build

Co-authored-by: johndoe6345789 <224850594+johndoe6345789@users.noreply.github.com>

settings.gradle.kts

@@ -0,0 +1,18 @@
+pluginManagement {
+    repositories {
+        google()
+        mavenCentral()
+        gradlePluginPortal()
+    }
+}
+
+dependencyResolutionManagement {
+    repositoriesMode.set(RepositoriesMode.FAIL_ON_PROJECT_REPOS)
+    repositories {
+        google()
+        mavenCentral()
+    }
+}
+
+rootProject.name = "RepoForge"
+include(":app")