DataTable does not support Kotlin Collection types

[mlvandijk]

Describe the bug
A clear and concise description of what the bug is.

When using Data Tables to pass a set of values to the StepDefs, the Kotlin types Map and List don't seem to be understood by TypeFactory.constructTypeInner(), resulting in the foollowing exception:
io.cucumber.datatable.UndefinedDataTableTypeException: Can't convert DataTable to Map<java.lang.String, ? extends java.util.Map<java.lang.String, java.lang.String>>. Please register a DataTableType with a TableEntryTransformer or TableCellTransformer for ? extends java.util.Map<java.lang.String, java.lang.String>

Using java.util.Map instead of kotlin.collections.Map fixes the problem

To Reproduce
Steps to reproduce the behavior:

1. A step with a DataTable, for example:

Scenario Outline: Filter on status "<status>"
    Given orders with an order item and the following attributes:
    |  | expected | quantityRequested | quantityShipped | 
    | 101  | Status.REGISTERED | 10 | 0 | 
    | 102  | Status.SHIPPED | 10 | 10 | 

2. A StepDef (in Kotlin) expecting a Map<String, Map<String, String>>:

  @Given("orders with an order item and the following attributes:")
    fun statusFilterOrdersInEs(attributes: Map<String, Map<String, String>>)

This StepDef does not work.

Work around
The following StepDef does work:

@Given("orders with an order item and the following attributes:")
    fun statusFilterOrdersInEs(attributes: java.util.Map<String, java.util.Map<String, String>>)

(providing explicit Java types)

Expected behavior
DataTable should be translated into the expected types (Kotlin Collections).

Context & Motivation
We are using DataTables to set up state in our Kotlin service, in order to test logic in this service.

Screenshots
N/A

Your Environment

• Versions used: cucumber-java8 v4.8.0 (with datatable v1.1.14). Can also be reproduced when using datatable v3.0.0 explicitly.
• Operating System and version: MacOs Mojave
• Build tool: IntelliJ / Maven / JUnit
• Kotlin version: 1.3.61
• Java version: 1.8

Additional context
Add any other context about the problem here.

[mlvandijk]

Info from Slack, provided by @mpkorstanje:
I strongly suspect the problem is here:
https://github.com/cucumber/cucumber/blob/master/datatable/java/datatable/src/main/java/io/cucumber/datatable/TypeFactory.java#L63
datatable/java/datatable/src/main/java/io/cucumber/datatable/TypeFactory.java:63

        // We'll only care about exact matches for now.