Rust: Add example queries pack.

Author: geoffw0

docs/codeql/reusables/rust-further-reading.rst

@@ -1,2 +1,3 @@
 - `CodeQL queries for Rust <https://github.com/github/codeql/tree/main/rust/ql/src>`__
+- `Example queries for Rust <https://github.com/github/codeql/tree/main/rust/ql/examples>`__
 - `CodeQL library reference for Rust <https://codeql.github.com/codeql-standard-libraries/rust/>`__

rust/ql/examples/qlpack.lock.yml

@@ -0,0 +1,4 @@
+---
+dependencies: {}
+compiled: false
+lockVersion: 1.0.0

rust/ql/examples/qlpack.yml

@@ -0,0 +1,7 @@
+name: codeql/rust-examples
+groups:
+  - rust
+  - examples
+dependencies:
+  codeql/rust-all: ${workspace}
+warnOnImplicitThis: true