Add GitHub Actions workflow for build/test plus README badges

.github/main.workflow

@@ -0,0 +1,15 @@
+workflow "build and test" {
+  on = "push"
+  resolves = ["test"]
+}
+
+action "build" {
+  uses = "actions-contrib/go@master"
+  args = ["build", "-v", "./..."]
+}
+
+action "test"{
+  uses = "actions-contrib/go@master"
+  args = ["test", "-v", "./..."]
+  needs = "build"
+}

README.md

@@ -1,5 +1,7 @@
 # Strato
 
+[![Actions Status](https://wdp9fww0r9.execute-api.us-west-2.amazonaws.com/production/badge/lucperkins/strato)](https://github.com/lucperkins/strato/actions) [![GoDoc](https://godoc.org/github.com/lucperkins/strato?status.svg)](https://godoc.org/github.com/lucperkins/strato) 
+
 An all-in-one data service with support for:
 
 * Key/value operations