Add drone.yml for Drone CI

.drone.yml

@@ -0,0 +1,43 @@
+---
+kind: pipeline
+type: docker
+name: python39
+
+steps:
+- name: build
+  image: python:3.9-slim
+  commands:
+  - id
+  - python -V
+  - apt update && apt install -y gcc g++ libicu-dev pkg-config
+  - pip install -r requirements-dev.txt
+
+---
+kind: pipeline
+type: docker
+name: python38
+
+steps:
+- name: build
+  image: python:3.8-slim
+  commands:
+  - id
+  - python -V
+  - apt update && apt install -y gcc g++ libicu-dev pkg-config
+  - pip install -r requirements-dev.txt
+
+---
+kind: pipeline
+type: docker
+name: python37
+
+steps:
+- name: build
+  image: python:3.7-slim
+  commands:
+  - id
+  - python -V
+  - apt update && apt install -y gcc g++ libicu-dev pkg-config
+  - pip install -r requirements-dev.txt
+
+# vim: ts=2 sw=2 et