[xmlunit/xmlunit.net] f498c2: complete port of xmlunit-placeholder from Java

[GitHub <no...@gi...>]

  Branch: refs/heads/master
  Home:   https://github.com/xmlunit/xmlunit.net
  Commit: f498c209d6e6e25c0ba920fe14a3846bbd797060
      https://github.com/xmlunit/xmlunit.net/commit/f498c209d6e6e25c0ba920fe14a3846bbd797060
  Author: Stefan Bodewig <ste...@fr...>
  Date:   2017-10-16 (Mon, 16 Oct 2017)

  Changed paths:
    M RELEASE_NOTES.md
    M XMLUnit.NET.sln
    M src/main/net-placeholders/PlaceholderDifferenceEvaluator.cs
    A src/tests/net-placeholders/PlaceholderDifferenceEvaluatorTest.cs
    A src/tests/net-placeholders/PlaceholderSupportTest.cs
    A src/tests/net-placeholders/XMLUnit.Placeholders.Tests.csproj
    A src/tests/net-placeholders/packages.config

  Log Message:
  -----------
  complete port of xmlunit-placeholder from Java