Add basic workspace configuration for vscode

.gitignore

@@ -97,3 +97,10 @@ objs
 # Generated docs
 /doc/api
 *.orig
+
+# VSCode workspace files
+.vscode/*
+!.vscode/settings.json
+!.vscode/tasks.json
+!.vscode/launch.json
+!.vscode/extensions.json

.vscode/extensions.json

@@ -0,0 +1,17 @@
+{
+	// See https://go.microsoft.com/fwlink/?LinkId=827846 to learn about workspace recommendations.
+	// Extension identifier format: ${publisher}.${name}. Example: vscode.csharp
+
+	// List of extensions which should be recommended for users of this workspace.
+	"recommendations": [
+		// Syntax
+		"ms-vscode.cpptools",
+		"ms-vscode.cmake-tools",
+		"ms-python.python",
+		"twxs.cmake"
+	],
+	// List of extensions recommended by VS Code that should not be recommended for users of this workspace.
+	"unwantedRecommendations": [
+
+	]
+}

.vscode/settings.json

@@ -0,0 +1,7 @@
+{
+    "editor.rulers": [
+        {"column": 95 },
+        {"column": 120 }
+    ],
+    "files.trimTrailingWhitespace": true
+}

tests/docker/Dockerfile

@@ -0,0 +1,5 @@
+FROM gcc:10
+RUN echo "deb http://deb.debian.org/debian buster-backports main" >> /etc/apt/sources.list
+RUN apt-get update -qq
+RUN apt-get -t buster-backports install -y cmake
+