Support boxing delegates (microsoft#810)

Remove visualizer from vsix (microsoft#792)

Add default WinMD references to the desktop templates. (microsoft#781)

* Add default WinMD references to the desktop templates.

* Switch to a target.

* Revert formatting.

Clang conformance (microsoft#779)

Define co_await operators for C++20 coroutines as well (microsoft#764) (

microsoft#765)

Only use Hash task on VS 2019 and higher. (microsoft#763)

Remove /await flag for compat with C++20 (microsoft#756)

C++20 coroutine support (microsoft#748)

Allow cancellation to be propagated to child coroutines (microsoft#721)

Make vector<bool> work again (microsoft#703)