Reduce SonarCloud scope (see #1715)

sonar-project.properties

@@ -4,7 +4,7 @@ sonar.projectVersion=0.4
 
 sonar.log.level=INFO
 
-sonar.exclusions=deps/**/*,build/open62541.c,build/open62541.h,CMakeFiles/**/*
+sonar.exclusions=deps/**/*,build/open62541.c,build/open62541.h,CMakeFiles/**/*,tools/**/*,tests/**/*,examples/**/*
 
 
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