fix: android codegen for other external packages

Author: HayesGordon

android/build.gradle

@@ -23,9 +23,14 @@ def reactNativeArchitectures() {
 apply plugin: "com.android.library"
 apply plugin: "kotlin-android"
 apply from: '../nitrogen/generated/android/rive+autolinking.gradle'
-
 apply plugin: "com.facebook.react"
 
+react {
+  jsRootDir = file("../src/")
+  libraryName = "rive"
+  codegenJavaPackageName = "com.rive"
+}
+
 def getExtOrIntegerDefault(name) {
   return rootProject.ext.has(name) ? rootProject.ext.get(name) : (project.properties["Rive_" + name]).toInteger()
 }