Add configuration for sonarcloud.io according to https://github.com/SonarSource/sonarcloud-github-action

sonar-project.properties

@@ -0,0 +1,6 @@
+sonar.organization=baztian
+sonar.projectKey=baztian_jaydebeapi
+
+# relative paths to source directories. More details and properties are described
+# in https://sonarcloud.io/documentation/project-administration/narrowing-the-focus/ 
+sonar.sources=.