Release of version 4.2.2.

[Tests] fix compilation warnings

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Resolve the unused-but-set-variable warning from res value to have a stable release in ros buildfarm

Uncomment this line to resolve the unused-but-set-variable warning to have a stable release in ros buildfarm

Add operations to the unused variables to silence the unused variable warnings in order to have a stable release of dynamic-graph into the ros buildfarm

[cmake] Remove test.cmake

Necessary on clang.

Update package.xml

Remove jrl-cmakemodules because it is called two times and because of that the release in the ros buildfarm did not work.

Add dependencies to build in the ROS buildfarm