Devcontainer support for SD build

.devcontainer/Dockerfile

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+FROM mcr.microsoft.com/devcontainers/base:focal
+RUN dpkg --add-architecture i386
+RUN \
+    apt update && \
+    apt install -y \
+    libxtst6 libx11-6 libtinfo-dev libxrender-dev libfreetype6 libxi6
+
+RUN \
+    apt install -y \
+    libncurses5 wget git xterm \
+    libncurses5-dev libncursesw5-dev \
+    lib32ncurses6 autoconf libtool\
+    texinfo gcc-multilib nano
+RUN locale-gen en_US.utf8 && update-locale
+RUN \
+    apt install -y \
+    software-properties-common lsb-core
+WORKDIR /tmp/work
+COPY ./sdbuild/scripts/setup_host.sh .
+RUN chmod +x setup_host.sh
+RUN /bin/sh -c /tmp/work/setup_host.sh
+RUN rm -r /tmp/work/*
+LABEL reference="https://superuser.com/questions/715722/how-to-do-dpkg-reconfigure-dash-as-bash-automatically"
+RUN echo "dash dash/sh boolean false" | debconf-set-selections
+RUN DEBIAN_FRONTEND=noninteractive dpkg-reconfigure dash
+
+WORKDIR /workspace

.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/devcontainers/templates/tree/main/src/ubuntu
+{
+	"name": "Ubuntu",
+	// Or use a Dockerfile or Docker Compose file. More info: https://containers.dev/guide/dockerfile
+	// "image": "mcr.microsoft.com/devcontainers/base:focal",
+	"build" : {
+		"context": "..",
+		"dockerfile": "Dockerfile"
+	},
+
+	"features": {
+		// "ghcr.io/devcontainers-contrib/features/apt-get-packages:1": {
+		// 	"clean_ppas": true,
+		// 	"preserve_apt_list": true,
+		// 	"packages": "build-essential",
+		// 	"ppas": "ppa:deadsnakes/ppa"
+		// },
+		// "ghcr.io/devcontainers-contrib/features/apt-packages:1": {
+		// 	"clean_ppas": true,
+		// 	"preserve_apt_list": true,
+		// 	"packages": "build-essential",
+		// 	"ppas": "ppa:deadsnakes/ppa"
+		// },
+		// "ghcr.io/devcontainers-contrib/features/wget-apt-get:1": {}
+	},
+
+	// Features to add to the dev container. More info: https://containers.dev/features.
+	// "features": {},
+
+	// Use 'forwardPorts' to make a list of ports inside the container available locally.
+	// "forwardPorts": [],
+
+	// Use 'postCreateCommand' to run commands after the container is created.
+	// "postCreateCommand": "uname -a",
+
+	// Configure tool-specific properties.
+	// "customizations": {},
+
+	"privileged": true,
+	// "capAdd": ["SYS_ADMIN"],
+	// Uncomment to connect as root instead. More info: https://aka.ms/dev-containers-non-root.
+	// "remoteUser": "root"
+	"mounts": [
+		"source=/tools/Xilinx,target=/tools/Xilinx,readonly,type=bind,consistency=cached"
+	]
+}