Use standard drone config similar to other drone libs

[tboerger]

No description provided.

[CLAassistant]

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[bradrydzewski]

I think we could simplify to this:

---
kind: pipeline
name: testing

platform:
  os: linux
  arch: amd64

steps:
- name: test
  image: golang:1.11
  commands:
  - go vet ./...
  - go test -cover ./...

I know the plugins follow different conventions, but the plugins tend to have very complex pipelines (multi-os, multi-arch, docker builds, etc). For libraries I think we can keep things simple.

[tboerger]

Not exactly like you defined it, but I have simplified the pipeline now.