CsWinRT v1.0.2-prerelease.201103.4

Changes:

• 25e2ed4 Fixing read only dictionary lookup. (#536)
• 684f321 Ensure that xamlprecompile also adds generated sources (#552)
• 28e42b9 removed cruft causing warning (#556)
• fab6067 ensure robustness against malformed runtime class name (#534)
• 892817e Add more tests for WindowsRuntimeBufferExtensions (#527)
• af63025 Fixed removal of dll references that report IsWinmdFile == true (#533)
• fc55163 Forget the solution extension - workaround worked before, but under a ".sln" folder (#532)
• 1027a50 workaround for VS 16.8 SolutionDir bug (#529)

This list of changes was auto generated.