Resolves: Add GitHub Codespaces configuration

.devcontainer/Dockerfile

@@ -0,0 +1,13 @@
+FROM mcr.microsoft.com/vscode/devcontainers/dotnet:0.201.7-5.0
+
+# Install latest .NET Core 3.1
+RUN wget https://packages.microsoft.com/config/ubuntu/20.04/packages-microsoft-prod.deb -O packages-microsoft-prod.deb && \
+  sudo dpkg -i packages-microsoft-prod.deb && \
+  sudo apt-get update && \
+  sudo apt-get install -y apt-transport-https && \
+  sudo apt-get update && \
+  sudo apt-get install -y dotnet-sdk-3.1 && \
+  # Install Clang 11 for the UnitTests
+  sudo apt-get install clang-11 -y
+
+# Built with ❤ by [Pipeline Foundation](https://pipeline.foundation)

.devcontainer/devcontainer.json

@@ -0,0 +1,27 @@
+{
+	"name": "LLVMSharp Codespace",
+	"settings": {
+		"workbench.colorTheme": "Default Dark+",
+		"terminal.integrated.defaultProfile.linux": "pwsh"
+	},
+	"extensions": [
+		"eamodio.gitlens",
+		"ms-dotnettools.csharp",
+		"VisualStudioExptTeam.vscodeintellicode",
+		"ms-vscode.powershell",
+		"cschleiden.vscode-github-actions",
+		"redhat.vscode-yaml",
+		"bierner.markdown-preview-github-styles",
+		"ban.spellright",
+		"jmrog.vscode-nuget-package-manager",
+		"coenraads.bracket-pair-colorizer",
+		"vscode-icons-team.vscode-icons",
+		"editorconfig.editorconfig"
+	],
+	"postCreateCommand": "",
+	"build": {
+		"dockerfile": "Dockerfile"
+	}
+}
+
+// Built with ❤ by [Pipeline Foundation](https://pipeline.foundation)