VS Code CMake Helper: first implementation (#1)

CMake the way CLion does it (profiles and presets, targets, run and debug
configurations, CTest)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Co-authored-by: Tomáš Černík <Tom.cernik@gmail.com>
Reviewed-on: #1

scripts/docker.sh

@@ -0,0 +1,10 @@
+#!/bin/sh
+# Runs a command in the development image, in this folder, as you (so the
+# files it makes are yours): ./scripts/docker.sh npm run package
+# Without a command: a shell. The image is (re)built when the Dockerfile changes.
+set -e
+root=$(cd "$(dirname "$0")/.." && pwd)
+image=vs-code-cmake-helper-dev
+docker build -q -t "$image" "$root" >/dev/null
+tty=; [ -t 0 ] && tty=-it
+exec docker run --rm $tty -u "$(id -u):$(id -g)" -e HOME=/tmp -v "$root:/workspace" -w /workspace "$image" "${@:-bash}"