Support for CI

.drone.yml

@@ -0,0 +1,13 @@
+kind: pipeline
+name: default
+
+type: docker
+steps:
+  - name: Build
+    image: dotnet/core/sdk:3.1
+    commands:
+      - dotnet build -c Release
+  - name: Tests
+    image: dotnet/core/sdk:3.1
+    commands:
+      - dotnet test -v n