Add devcontainer to ease backend development

.devcontainer/devcontainer.json

@@ -0,0 +1,15 @@
+{
+  "name": "tgi-trtllm-backend",
+  "image": "nvidia/cuda:12.4.1-cudnn-devel-ubuntu22.04",
+  "runArgs": [
+    "--gpus=all"
+  ],
+  "remoteEnv": {
+    // "PATH": "${containerEnv:PATH}:/usr/local/cuda/bin",
+    "LD_LIBRARY_PATH": "$LD_LIBRARY_PATH:/usr/local/cuda/lib64:/usr/local/cuda/extras/CUPTI/lib64",
+  },
+  "updateContentCommand": "bash .devcontainer/install-dev-tools.sh",
+  "postCreateCommand": [
+    "nvidia-smi"
+  ]
+}

.devcontainer/install-dev-tools.sh

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+# update system
+apt-get update
+apt-get upgrade -y
+
+# install Linux tools and Python 3
+apt-get install software-properties-common wget curl clang cmake git libopenmpi-dev libssl-dev \
+    python3-dev python3-pip python3-wheel python3-setuptools -y
+
+# install Python packages
+python3 -m pip install --upgrade pip
+
+# Install Rust
+curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh
+. "$HOME/.cargo/env"
+
+# Install TensorRT
+curl --proto '=https' --tlsv1.2 -sSf https://github.com/NVIDIA/TensorRT-LLM/blob/main/docker/common/install_tensorrt.sh | sh