JNAerator: Generate Android-friendly code for direct mapping

Avoid error “The SecurityManager implementation on this platform is broken; you must explicitly provide the class to register” due to stub SecurityManager on Android as described in java-native-access/jna#218 .

jnaerator/src/main/java/com/ochafik/lang/jnaerator/JNADeclarationsConverter.java

@@ -1076,6 +1076,7 @@ public void generateLibraryFiles(SourceFiles sourceFiles, Result result, JNAerat
                             expr(typeRef(Native.class)),
                             Expression.MemberRefStyle.Dot,
                             "register",
+                            memberRef(expr(libTypeRef.clone()), MemberRefStyle.Dot, ident("class")),
                             libraryNameFieldExpr.clone())))).addModifiers(ModifierType.Static));
                 } else {
                     Expression[] loadLibArgs = isJNAerator