Changes:

• e9305c046fefe8ce28d9044c11fc45cc8ac7d29d Add C++/WinRT when_any async helper (#524)
• ba83df86e0e0d94bdb196e8c5036c3f476779423 Reduce the build time for C++/WinRT's std::hash specializations (#531)
• c441fb8fc2793d74fc57e52807b4e37eb191adb6 Add support for PE32+ (64-bit) winmd parsing, to re-enable managed assemblies (#530)
• 36c2fee1425d253942e0c58bcab1ce025af09210 Reenable coroutine support on VS 2017 (#528)
• e89c90b874d5fb61b75405f06b983c01ef198b94 Incorporating xlang error handling into cppxlang (#489)
• 722ff83545d22056c5e523cb67833fd0b80e4853 Add [[nodiscard]] attribute to auto_revoke_t overloads in C++/WinRT (#521)
• deb5faae0c164b85e30f2672bc2c34b0db8cdf40 Add C++/WinRT when_all async helper (#516)
• 055f8881435d59f6bc2e4238d00ecdd50e4389fb Add indented_writer_base to library (#305)

This list of changes was auto generated.