sonar: Add Sonar config (#21)

Author: echarrod

sonar-project.properties

@@ -0,0 +1,11 @@
+sonar.organization=danger
+sonar.projectKey=danger_golang
+sonar.projectName=golang
+sonar.links.scm=https://github.com/danger/golang
+sonar.sources=.
+sonar.exclusions=**/*_test.go, **/*pb.go, _examples/**/*
+sonar.go.coverage.reportPaths=coverage.out
+sonar.go.tests.reportPaths=sonar-report.json
+sonar.tests=.
+sonar.test.inclusions=**/*_test.go
+sonar.test.exclusions=**/*pb.go, _examples/**/*