chore: sonar

add sonar properties config file.

sonar-project.properties

+sonar.login=@SONAR_TOKEN@
+sonar.password=
+sonar.host.url=https://sonar.unige.ch
+sonar.projectKey=solidify-eslint-plugin
+sonar.projectName=Solidify Eslint Plugin
+sonar.projectVersion=1.0
+sonar.sourceEncoding=UTF-8
+sonar.sources=./src
+sonar.exclusions=**/node_modules/**,**/*.spec.ts
+sonar.tests=./tests
+sonar.test.inclusions=**/*.spec.ts
+sonar.ts.tslintconfigpath=tslint.json
+sonar.ts.lcov.reportpath=coverage/lcov.info
+sonar.typescript.lcov.reportPaths=coverage/lcov.info
+sonar.typescript.exclusions=**/node_modules/**