GitLab

#1647 Add a warning for the new use of interpret_valgrind_log.py, which is really for debug purpose only.

#1648 Valgrind: robustify the script that interpret the log so that american notation (comma for thousands) is supported.

#1644 Refine the dependency to librt so that it is added only on Linux (copying what is done in Libmeshb CMakeLists.txt).

#1642 Now that third party library Docker images have been rebuilt, I must apply the workaround to avoid the 'shell not found' error that popped up in the Fedora images (see the ticket number for a link which explains the issue and the workaround).

#1635 The new warnings in AppleClang appeared apparently between v12 and v12.0.5; so I use a more refined value to discriminate.

#1640 Use a strong type for Component indexes. There is a bit of code to check thoroughly, and some type changes to fix the many warnings that arose.