Add example/rust

Signed-off-by: Ivan-Velickovic <i.velickovic@unsw.edu.au>

Author: Ivan-Velickovic

example/rust/.cargo/config.toml

@@ -0,0 +1,11 @@
+#
+# Copyright 2023, Colias Group, LLC
+#
+# SPDX-License-Identifier: BSD-2-Clause
+#
+
+[unstable]
+unstable-options = true
+
+[env]
+RUST_TARGET_PATH = { value = "support/targets", relative = true }