Initial setup of configuration files, build script, and documentation…

… for the repo

.config/dotnet-tools.json

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+{
+  "version": 1,
+  "isRoot": true,
+  "tools": {
+    "uno.check": {
+      "version": "1.10.0",
+      "commands": [
+        "uno-check"
+      ]
+    },
+    "xamlstyler.console": {
+      "version": "3.2206.4",
+      "commands": [
+        "xstyler"
+      ]
+    },
+    "microsoft.visualstudio.slngen.tool": {
+      "version": "9.5.4",
+      "commands": [
+        "slngen"
+      ]
+    }
+  }
+}

.devcontainer/Dockerfile

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+# See here for image contents: https://github.com/microsoft/vscode-dev-containers/tree/v0.208.0/containers/dotnet/.devcontainer/base.Dockerfile
+
+# [Choice] .NET version: 6.0, 5.0, 3.1, 6.0-bullseye, 5.0-bullseye, 3.1-bullseye, 6.0-focal, 5.0-focal, 3.1-focal
+ARG VARIANT="6.0-bullseye-slim"
+FROM mcr.microsoft.com/vscode/devcontainers/dotnet:0-${VARIANT}
+
+# [Choice] Node.js version: none, lts/*, 16, 14, 12, 10
+ARG NODE_VERSION="none"
+RUN if [ "${NODE_VERSION}" != "none" ]; then su vscode -c "umask 0002 && . /usr/local/share/nvm/nvm.sh && nvm install ${NODE_VERSION} 2>&1"; fi
+
+# [Optional] Uncomment this section to install additional OS packages.
+# RUN apt-get update && export DEBIAN_FRONTEND=noninteractive \
+#     && apt-get -y install --no-install-recommends <your-package-list-here>
+
+RUN apt-get update && export DEBIAN_FRONTEND=noninteractive \
+     && apt-get -y install --no-install-recommends ninja-build
+
+RUN apt-get update && apt-get install -y --no-install-recommends apt-transport-https dirmngr gnupg ca-certificates \
+    && apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys 3FA7E0328081BFF6A14DA29AA6A19B38D3D831EF \
+    && echo "deb https://download.mono-project.com/repo/debian stable-buster main" | tee /etc/apt/sources.list.d/mono-official-stable.list \
+    && apt-get update && apt-get -y --no-install-recommends install mono-complete
+
+# [Optional] Uncomment this line to install global node packages.
+# RUN su vscode -c "source /usr/local/share/nvm/nvm.sh && npm install -g <your-package-here>" 2>&1

.devcontainer/default.code-workspace

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+{
+	"folders": [
+		{
+			"path": ".."
+		}
+	],
+	"settings": {
+		"omnisharp.defaultLaunchSolution": "CommunityToolkit.AllComponents.sln",
+		"omnisharp.disableMSBuildDiagnosticWarning": true,
+		"omnisharp.enableRoslynAnalyzers": true,
+		"omnisharp.useGlobalMono": "never",
+		"csharp.suppressBuildAssetsNotification": true,
+		"csharp.suppressDotnetInstallWarning": true,
+		"csharp.suppressDotnetRestoreNotification": true,
+		"csharp.semanticHighlighting.enabled": true,
+		"omnisharp.enableImportCompletion": true,
+		"omnisharp.enableMsBuildLoadProjectsOnDemand": true
+	}
+}

.devcontainer/devcontainer.json

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+// For format details, see https://aka.ms/devcontainer.json. For config options, see the README at:
+// https://github.com/microsoft/vscode-dev-containers/tree/v0.208.0/containers/dotnet
+{
+	"name": "C# (.NET)",
+	"build": {
+		"dockerfile": "Dockerfile",
+		"args": {
+			// Update 'VARIANT' to pick a .NET Core version: 3.1, 5.0, 6.0
+			// Append -bullseye or -focal to pin to an OS version.
+			"VARIANT": "6.0",
+			// Options
+			"NODE_VERSION": "lts/*"
+		}
+	},
+	// Set *default* container specific settings.json values on container create.
+	"settings": {},
+	// Add the IDs of extensions you want installed when the container is created.
+	"extensions": [
+		"ms-dotnettools.csharp",
+		"unoplatform.vscode",
+		"ms-vsliveshare.vsliveshare",
+		"ms-vscode.powershell"
+	],
+	// Use 'forwardPorts' to make a list of ports inside the container available locally.
+	"forwardPorts": [
+		5000,
+		5001
+	],
+
+	"appPort": [
+		5000,
+		5001
+	],
+	// [Optional] To reuse of your local HTTPS dev cert:
+	//
+	// 1. Export it locally using this command:
+	//    * Windows PowerShell:
+	//        dotnet dev-certs https --trust; dotnet dev-certs https -ep "$env:USERPROFILE/.aspnet/https/aspnetapp.pfx" -p "SecurePwdGoesHere"
+	//    * macOS/Linux terminal:
+	//        dotnet dev-certs https --trust; dotnet dev-certs https -ep "${HOME}/.aspnet/https/aspnetapp.pfx" -p "SecurePwdGoesHere"
+	// 
+	// 2. Uncomment these 'remoteEnv' lines:
+	//    "remoteEnv": {
+	// 	      "ASPNETCORE_Kestrel__Certificates__Default__Password": "SecurePwdGoesHere",
+	//        "ASPNETCORE_Kestrel__Certificates__Default__Path": "/home/vscode/.aspnet/https/aspnetapp.pfx",
+	//    },
+	//
+	// 3. Do one of the following depending on your scenario:
+	//    * When using GitHub Codespaces and/or Remote - Containers:
+	//      1. Start the container
+	//      2. Drag ~/.aspnet/https/aspnetapp.pfx into the root of the file explorer
+	//      3. Open a terminal in VS Code and run "mkdir -p /home/vscode/.aspnet/https && mv aspnetapp.pfx /home/vscode/.aspnet/https"
+	//
+	//    * If only using Remote - Containers with a local container, uncomment this line instead:
+	//      "mounts": [ "source=${env:HOME}${env:USERPROFILE}/.aspnet/https,target=/home/vscode/.aspnet/https,type=bind" ],
+	// Use 'postCreateCommand' to run commands after the container is created.
+	// "postCreateCommand": "dotnet restore",
+	"postCreateCommand": "dotnet dev-certs https --trust",
+	// Comment out connect as root instead. More info: https://aka.ms/vscode-remote/containers/non-root.
+	"remoteUser": "vscode",
+	"features": {
+		"powershell": "latest"
+	},
+	"portsAttributes": {
+		"5000": {
+			"label": "WebAssembly App",
+			"onAutoForward": "openPreview"
+		}
+	}
+}