Set up CI with AppVeyor

BrowserProxy.sln

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+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.7.34018.315
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "BrowserProxy", "BrowserProxy\BrowserProxy.vcxproj", "{DBD14B66-F34F-4401-966B-E0F1073168D5}"
+EndProject
+Global
+ GlobalSection(SolutionConfigurationPlatforms) = preSolution
+ Debug|Any CPU = Debug|Any CPU
+ Debug|x86 = Debug|x86
+ Develop|Any CPU = Develop|Any CPU
+ Develop|x86 = Develop|x86
+ Release|Any CPU = Release|Any CPU
+ Release|x86 = Release|x86
+ EndGlobalSection
+ GlobalSection(ProjectConfigurationPlatforms) = postSolution
+ {DBD14B66-F34F-4401-966B-E0F1073168D5}.Debug|Any CPU.ActiveCfg = Debug|Win32
+ {DBD14B66-F34F-4401-966B-E0F1073168D5}.Debug|x86.ActiveCfg = Debug|Win32
+ {DBD14B66-F34F-4401-966B-E0F1073168D5}.Debug|x86.Build.0 = Debug|Win32
+ {DBD14B66-F34F-4401-966B-E0F1073168D5}.Develop|Any CPU.ActiveCfg = Develop|Win32
+ {DBD14B66-F34F-4401-966B-E0F1073168D5}.Develop|x86.ActiveCfg = Develop|Win32
+ {DBD14B66-F34F-4401-966B-E0F1073168D5}.Develop|x86.Build.0 = Develop|Win32
+ {DBD14B66-F34F-4401-966B-E0F1073168D5}.Release|Any CPU.ActiveCfg = Release|Win32
+ {DBD14B66-F34F-4401-966B-E0F1073168D5}.Release|x86.ActiveCfg = Release|Win32
+ {DBD14B66-F34F-4401-966B-E0F1073168D5}.Release|x86.Build.0 = Release|Win32
+ EndGlobalSection
+ GlobalSection(SolutionProperties) = preSolution
+ HideSolutionNode = FALSE
+ EndGlobalSection
+ GlobalSection(ExtensibilityGlobals) = postSolution
+ SolutionGuid = {D36760CA-9F66-4C07-AD48-C9F17ADB7A63}
+ EndGlobalSection
+EndGlobal

appveyor.yml

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+version: 1.0.{build}
+image: Visual Studio 2022
+
+configuration:
+- Release
+
+platform: x86
+
+before_build:
+- nuget restore BrowserProxy.sln
+
+build:
+ verbosity: minimal
+ project: BrowserProxy.sln
+
+artifacts:
+- path: BrowserProxy\$(configuration)\OpennessWebView2.dll