Add dev container configuration (#23)

* add devcontainer support files
* update rbuild to look in /usr/bin/openscad-nightly for openscad-nightly

.devcontainer/devcontainer.json

@@ -0,0 +1,19 @@
+// For format details, see https://aka.ms/devcontainer.json. For config options, see the
+// README at: https://github.com/devcontainers/templates/tree/main/src/debian
+{
+	"build": { "dockerfile": "dockerfile" },
+	"features": {
+		"ghcr.io/devcontainers/features/python:1": {
+			"installTools": true,
+			"version": "latest"
+		}
+	},
+
+	"customizations": {
+	},
+
+	"remoteUser": "vscode",
+	"mounts": [
+      "source=rackstack-bashhistory,target=/commandhistory,type=volume"
+  ]
+}

.devcontainer/dockerfile

@@ -0,0 +1,21 @@
+FROM mcr.microsoft.com/devcontainers/base:bookworm
+
+RUN wget -qO- https://files.openscad.org/OBS-Repository-Key.pub | sudo tee /etc/apt/trusted.gpg.d/obs-openscad-nightly.asc \
+    && echo "deb https://download.opensuse.org/repositories/home:/t-paul/Debian_12/ ./" >> /etc/apt/sources.list.d/openscad.list \
+    && apt-get update && export DEBIAN_FRONTEND=noninteractive \
+    && apt-get -y install --no-install-recommends openscad openscad-nightly libpng-dev libjpeg-dev libtiff-dev
+
+
+RUN apt-get -y install --no-install-recommends imagemagick
+
+RUN curl -sL http://www.lcdf.org/gifsicle/gifsicle-1.91.tar.gz | tar -zx \
+    && cd gifsicle-1.91 \
+    && ./configure --disable-gifview \
+    && make install
+
+ARG USERNAME=vscode
+RUN SNIPPET="export PROMPT_COMMAND='history -a' && export HISTFILE=/commandhistory/.bash_history" \
+    && mkdir /commandhistory \
+    && touch /commandhistory/.bash_history \
+    && chown -R $USERNAME /commandhistory \
+    && echo "$SNIPPET" >> "/home/$USERNAME/.bashrc"