Tidied up debug and release configuration blocks in common project file to avoid duplication.
Updated appveyor config to use latest Visual Studio 2019 image.
Changed appveyor config file hash to use a new version of Qt pre-compiled binaries built for Visual Studio 2019 v16.8.1.
Bumped vcpkg version to tag '2020.11-1' for binary caching feature.
See #20392 for related discussion.
Github-Pull: #20506
Rebased-From: 8b99e609e7
- Update Visual Studio instructions.
- Remove x64 platform conditional from bitcoin-qt project configuration.
- Set use native environment toolset to fix linker warning.
- Ignore linker warning about precompiled type information missing for test_bitcoin_qt.