feat: add shared Rust MSIX engine and CLI

Closes #2

src/apps/cli/Cargo.toml

@@ -0,0 +1,16 @@
+[package]
+name = "package-builder"
+version.workspace = true
+edition.workspace = true
+license.workspace = true
+
+[dependencies]
+anyhow.workspace = true
+serde.workspace = true
+serde_json.workspace = true
+schemars.workspace = true
+package-domain.workspace = true
+package-engine.workspace = true
+package-infra.workspace = true
+clap = { version = "4", features = ["derive"] }
+ctrlc = "3"