hypha: move libraries to libs/

libs/xen/xenstore/Cargo.toml

@@ -0,0 +1,21 @@
+[package]
+name = "xenstore"
+version.workspace = true
+edition = "2021"
+resolver = "2"
+
+[lib]
+path = "src/lib.rs"
+
+[dependencies]
+thiserror = { workspace = true }
+libc = { workspace = true }
+log = { workspace = true }
+
+[dependencies.bytemuck]
+workspace = true
+features = ["derive"]
+
+[[example]]
+name = "xenstore-ls"
+path = "examples/list.rs"