upgrade to JUCE 5.4.3. Remove (probably) unused JUCE modules. Remove VST2 target (it's been end-of-life'd by Steinberg and by JUCE)

modules/juce_core/native/javacore/app/com/roli/juce/JuceApp.java

@@ -0,0 +1,15 @@
+package com.roli.juce;
+
+import com.roli.juce.Java;
+
+import android.app.Application;
+
+public class JuceApp extends Application
+{
+    @Override
+    public void onCreate ()
+    {
+        super.onCreate ();
+        Java.initialiseJUCE (this);
+    }
+}

modules/juce_core/native/javacore/init/com/roli/juce/Java.java

@@ -0,0 +1,13 @@
+package com.roli.juce;
+
+import android.content.Context;
+
+public class Java
+{
+    static
+    {
+        System.loadLibrary ("juce_jni");
+    }
+
+    public native static void initialiseJUCE (Context appContext);
+}