Add missing Cargo.lock files and ext/ crate for Rust QL tools test fixtures (#210)

* Initial plan

* Add missing Cargo.lock files and ext/ crate for Rust QL tools test fixtures

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Co-authored-by: data-douser <70299490+data-douser@users.noreply.github.com>

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: data-douser <70299490+data-douser@users.noreply.github.com>

Author: Copilot

server/ql/rust/tools/test/CallGraphFromTo/Cargo.lock

@@ -0,0 +1,11 @@
+
+[workspace]
+[package]
+name = "test"
+version = "0.0.1"
+edition = "2021"
+[lib]
+path = "lib.rs"
+[dependencies]
+
+