initial work to split into dart_filament and flutter_filament

flutter_filament/android/build.gradle

@@ -0,0 +1,63 @@
+group 'app.polyvox.filament'
+version '1.0-SNAPSHOT'
+
+buildscript {
+    ext.kotlin_version = '1.7.10'
+    repositories {
+        google()
+        mavenCentral()
+    }
+
+    dependencies {
+        classpath 'com.android.tools.build:gradle:7.3.0'
+        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
+    }
+}
+
+rootProject.allprojects {
+    repositories {
+        google()
+        mavenCentral()
+    }
+}
+
+apply plugin: 'com.android.library'
+apply plugin: 'kotlin-android'
+
+android {
+    compileSdkVersion 33
+    ndkVersion '25.2.9519653'
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
+    }
+
+    kotlinOptions {
+        jvmTarget = '1.8'
+    }
+
+    sourceSets {
+        main.java.srcDirs += 'src/main/kotlin'
+    }
+
+    defaultConfig {
+        minSdkVersion 22
+        ndk {
+            abiFilters 'arm64-v8a' // 'x86_64' 'armeabi-v7a' 
+        }
+    }
+    
+    externalNativeBuild {
+        cmake {
+            path "CMakeLists.txt"
+            version "3.18.1"
+        }
+    }
+}
+
+dependencies {
+    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk8:$kotlin_version"
+    implementation 'net.java.dev.jna:jna:5.10.0@aar'
+    implementation "org.jetbrains.kotlinx:kotlinx-coroutines-core:1.5.2"
+    implementation "org.jetbrains.kotlinx:kotlinx-coroutines-android:1.5.2"
+}