Add ability to define different example values for each array element in PactDslJsonArray

[alonpeer]

When I currently do:

val matchers = new PactDslJsonBody().minArrayLike("foo", 2)
  .stringMatcher("bar", "[a-z0-9]+", "abc")
  .integerType("baz", 666)
  .close()

The body for the example will have a foo array, with 2 identical examples: {"bar": "abc", "baz": 666}.

I'd like to be able to define multiple example values, e.g. like this:

val matchers = new PactDslJsonBody().minArrayLike("foo", 2)
  .stringMatcher("bar", "[a-z0-9]+", List("abc", "def"))
  .integerType("baz", List(666, 90210))
  .close()

So that I'll get a body similar to:

{
  "foo": [
    {"bar": "abc", "baz": 666},
    {"bar": "def", "baz": 90210}
  ]
}

[uglyog]

I've updated the DSL to use multiple values with varargs:

PactDslJsonBody body = new PactDslJsonBody()
      .minArrayLike('foo', 2)
        .stringMatcher('bar', '[a-z0-9]+', 'abc', 'def')
        .integerType('baz', 666, 90210)
      .close()

This now generates:

{
    "foo": [
      {"bar":"abc","baz":666},
      {"bar":"def","baz":90210}
    ]
}