chore: add CI build config

.drone.yml

@@ -0,0 +1,12 @@
+---
+kind: pipeline
+type: docker
+name: default
+steps:
+- name: cargo test
+  image: rust:latest
+  commands:
+  - apt-get update
+  - apt-get install -y libsqlite3-dev
+  - cargo build --verbose --all
+  - cargo test --verbose --all