examples: update some cs through ugly xml manipulation

10 jobs for pr/29 in 6 minutes and 41 seconds (queued for 2 seconds)
latest
Name Stage Failure
failed
doc-coverage Test
unittest/geometry.cpp                         41      41   100%   
unittest/scenario.cpp 1664 1664 100%
unittest/serialization_versionning.cpp 30 6 20% 34-45,51-62
------------------------------------------------------------------------------
TOTAL 3557 2924 82%
------------------------------------------------------------------------------
$ gcovr -e CMakeFiles -e _deps -r . --html --html-details -o ${CI_PROJECT_DIR}/coverage/index.html
Cleaning up project directory and file based variables
ERROR: Job failed: exit code 1

failed
robotpkg-py-multicontact-api-20.04 Test
Total Test time (real) =   0.31 sec

The following tests FAILED:
3 - examples (Failed)
4 - serialization_versionning (Failed)
Errors while running CTest
make: *** [Makefile:110: test] Error 8
Cleaning up project directory and file based variables
ERROR: Job failed: exit code 1

failed
robotpkg-py-multicontact-api-buster Test
Total Test time (real) =   0.30 sec

The following tests FAILED:
3 - examples (Failed)
4 - serialization_versionning (Failed)
Errors while running CTest
make: *** [Makefile:110: test] Error 8
Cleaning up project directory and file based variables
ERROR: Job failed: exit code 1

failed
robotpkg-py-multicontact-api-ferrum Test

The following tests FAILED:
3 - examples (Failed)
4 - serialization_versionning (Failed)
Errors while running CTest
Makefile:128: recipe for target 'test' failed
make: *** [test] Error 8
Cleaning up project directory and file based variables
ERROR: Job failed: exit code 1

failed
robotpkg-py-multicontact-api-18.04 Test

The following tests FAILED:
3 - examples (Failed)
4 - serialization_versionning (Failed)
Errors while running CTest
make: *** [test] Error 8
Makefile:109: recipe for target 'test' failed
Cleaning up project directory and file based variables
ERROR: Job failed: exit code 1

failed
robotpkg-multicontact-api-buster Test
Total Test time (real) =   0.03 sec

The following tests FAILED:
3 - examples (Failed)
4 - serialization_versionning (Failed)
Errors while running CTest
make: *** [Makefile:110: test] Error 8
Cleaning up project directory and file based variables
ERROR: Job failed: exit code 1

failed
robotpkg-multicontact-api-ferrum Test

The following tests FAILED:
3 - examples (Failed)
4 - serialization_versionning (Failed)
Errors while running CTest
Makefile:128: recipe for target 'test' failed
make: *** [test] Error 8
Cleaning up project directory and file based variables
ERROR: Job failed: exit code 1

failed
format Test
+ shift
+ [[ 0 -gt 0 ]]
+ true
+ find . -path ./cmake -prune -o -iregex '.*\.\(h\|c\|hh\|cc\|hpp\|cpp\|hxx\|cxx\)$' -exec clang-format-6.0 -i '{}' +
+ true
+ flake8 .
./examples/display_gepetto_gui.py:7:1: F401 'ndcurves' imported but unused
Cleaning up project directory and file based variables
ERROR: Job failed: exit code 1

failed
robotpkg-multicontact-api-20.04 Test
Total Test time (real) =   0.03 sec

The following tests FAILED:
3 - examples (Failed)
4 - serialization_versionning (Failed)
Errors while running CTest
make: *** [Makefile:110: test] Error 8
Cleaning up project directory and file based variables
ERROR: Job failed: exit code 1

failed
robotpkg-multicontact-api-18.04 Test

The following tests FAILED:
3 - examples (Failed)
4 - serialization_versionning (Failed)
Errors while running CTest
Makefile:109: recipe for target 'test' failed
make: *** [test] Error 8
Cleaning up project directory and file based variables
ERROR: Job failed: exit code 1