Clang tidy 9.0.0 is to perform static analysis of IDF sources. All component sources are analysed with default sdkconfig configuration, based on examples/get-started/hello_world project (compilation commands are extracted from default build commands for this project). Configuration of static analysis is defined in tools/ci/static-analysis-rules.yml
Closes https://github.com/espressif/esp-idf/issues/145
