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
0164b0f5cf build: Remove WINVER pre define in Makefile.leveldb.inlcude (Chun Kuan Lee)
d0522ec94e Drop defunct Windows compat fixes (Ben Woosley)
d8a2992067 windows: Call SetProcessDEPPolicy directly (Chun Kuan Lee)
1bd9ffdd44 windows: Set _WIN32_WINNT to 0x0601 (Windows 7) (Chun Kuan Lee)
Pull request description:
The current minimum support Windows version is Vista. So set it to 0x0600
5a88def8ad/mingw-w64-headers/include/sdkddkver.h (L19)
Tree-SHA512: 38e2afc79426ae547131c8ad3db2e0a7f54a95512f341cfa0c06e4b2fe79521ae67d2795ef96b0192e683e4f1ba6183c010d7b4b8d6b3e68b9bf48c374c59e7d