Improve support for Java varargs methods

Java supports varargs methods. For example, [Class.getMethod](https://developer.android.com/reference/java/lang/Class.html#getMethod%28java.lang.String, java.lang.Class<?>...%29)

Method getMethod (String name, Class...<?> parameterTypes)

This is syntax sugar for the actual method signature which is

Method getMethod (String name, Class<?>[] parameterTypes)

Currently, NativeScript for Android does not support calling such method with implicit parameter

var klass = java.lang.Object.class;

// option 1) not supported
var method = klass.getMethod("hasCode");

// option 2) supported
var method = klass.getMethod("hasCode", null);

We can provide another implementation for the current method resolution algorithm so it tries to find a method with one additional parameter (array) as a fallback and if this fail then the method resolution fails as expected.

Start with the current method resolution algorithm in the NativeScript Android runtime and trace how JavaScript calls are matched to Java methods. Verify the behavior against the implicit and explicit varargs examples in the issue. Done means an omitted varargs argument resolves through the array-parameter fallback while unresolved methods still fail normally.