Add basic CI?

.gitlab-ci.yml

@@ -0,0 +1,14 @@
+# This file is a template, and might need editing before it works on your project.
+# Official language image. Look for the different tagged releases at:
+# https://hub.docker.com/r/library/rust/tags/
+image: "rust:latest"
+
+
+# Use cargo to test the project
+test:cargo:
+  script:
+    - rustc --version && cargo --version  # Print version info for debugging
+    - cargo test --all --verbose
+  cache:
+    paths:
+      - target/