Adding testing CI step

.woodpecker/.test.yml

@@ -0,0 +1,13 @@
+pipeline:
+  clippy:
+    image: 'rust:1.57'
+    commands:
+      - cargo clippy -- -D clippy::all --no-deps
+
+  tests:
+    image: 'rust:1.57'
+    commands:
+      - cargo test
+
+when:
+  event: pull_request