ci: Add Drone configuration

.drone.yml

@@ -0,0 +1,18 @@
+---
+kind: pipeline
+type: docker
+name: default
+
+steps:
+  - name: Backend
+    image: golang:1.13
+    commands:
+      - |
+        get get -v -t -d ./...
+        if [ -f Gopkg.toml ]; then
+          curl https://raw.githubusercontent.com/golang/dep/master/install.sh | sh
+          dep ensure
+        fi
+      - go test
+
+#