chore: Add initial dev container support

Author: brianheineman

.devcontainer/Dockerfile

@@ -0,0 +1,2 @@
+ARG VARIANT="bullseye"
+FROM mcr.microsoft.com/vscode/devcontainers/rust:1-${VARIANT}

.devcontainer/devcontainer.json

@@ -0,0 +1,37 @@
+{
+  "name": "Rust",
+  "build": {
+    "dockerfile": "Dockerfile",
+    "args": {
+      "VARIANT": "bullseye"
+    }
+  },
+  "runArgs": [
+    "--cap-add=SYS_PTRACE",
+    "--security-opt",
+    "seccomp=unconfined"
+  ],
+
+  "customizations": {
+    "vscode": {
+      "settings": {
+        "lldb.executable": "/usr/bin/lldb",
+        "files.watcherExclude": {
+          "**/target/**": true
+        },
+        "rust-analyzer.checkOnSave.command": "clippy"
+      },
+
+      // Add the IDs of extensions you want installed when the container is created.
+      "extensions": [
+        "vadimcn.vscode-lldb",
+        "mutantdino.resourcemonitor",
+        "rust-lang.rust-analyzer",
+        "tamasfe.even-better-toml",
+        "serayuzgur.crates"
+      ]
+    }
+  },
+
+  "remoteUser": "vscode"
+}