More methods for populating arrays

[jason-parkhurst]

Could we have methods for adding a bunch of values to a V8Array? We're seeing a lot of overhead when we want to push arrays of primitives into the JavaScript.

Something like pushIntegers(int[] values), pushDoubles(double[] values), pushStrings(String[] values)....

[gagansingh198661]

@irbull Want to pick this up.