Ease verify inOrder for suspending functions

[seyfahni]

Why?

val stub = mock<SomeInterface>()

runBlocking {
  testWith(stub) // testing suspending code
}

stub.inOrder {
  verify().notSuspending()
  // this "worked" before my change, but didn't verify order
  verifyBlocking { suspending() }
  // instead one had to use runBlocking { verify().suspending() }
  // or val v = verify(); runBlocking { v.suspending() }
}

Changes:

• Added interface KInOrder to allow extending mockito's InOrder interface:
  • defined verifyBlocking methods with similar definition to those in Verification
  • implemented interface with a decorator that takes a mockito InOrder and does blocking verification the same way as in Verification
• Adjusted return types in Verification to provide KInOrder:
  • the implementation (KInOrderDecorator) is not internal so that the inline fun declaration continues working
• Added methods to InOrderOnType that allow passing a VerificationMode.

Thank you for submitting a pull request! But first:

• [x] Can you back your code up with tests?
• [x] Keep your commits clean: squash your commits if necessary.