* fix error for no python coverage data

* add retry on gcda_clean.py

* add exit code for paddle_coverage.sh

* fix format error

* fix format error

* use wget to replace curl to download the lcov file

* add cache for lcov

* add xpu_coverage function

* xpu coverage ipipe only deal with xpu files

* fix import error

* fix format error

* 'fix format error'

* fix format error

* fix error

* fix format error

* fix format error

* Generate code coverage reports only for incremental files, test=develop

* Generate code coverage reports only for incremental files, test=develop

* Generate code coverage reports only for incremental files, test=develop

* test for diff python file, test=develop

* fix no python diff report, test=develop

* add cc test file, test=develop

* fix bug in generic.cmake, test=develop

* for debug no cc report, test=develp

* modify compire branch form test_pr to test, test=develop

* fix bug, test=develop

* test for h file changed, test=develop

* debug for redefinition of argument optimize error, test=develop

* close -o3 for test, test=develop

* remove -o3 for test, test=develop

* remove coverage option for nvcc, test=develop

* use CMAKE_CXX_FLAGS open coverage option when header file changed, test=develop

* reopen -o3, test=develop

* remove debug code, test=develop

* remove unused code, test=develop

* resolve the issue of curl having same exit code with paddle build failed

* modifed the value of exit code

* simplify the code
Co-authored-by: Nchalsliu <45041955+chalsliu@users.noreply.github.com>

Add coverage data processing tools.