vidjil.cpp: warns when clang or gcc is too old

Closes #2631.
5 jobs for feature-a/2631-check-compilers in 19 minutes and 25 seconds
Status Job ID Name Coverage
  Test Unit
passed #21244
test_algo_unit

00:01:43

 
  Test Functional
passed #21245
test_algo_should

00:03:55

 
  Test Shouldvdj
passed #21246
test_algo_shouldvdj

00:09:48

 
  Valgrind Unit
passed #21247
algo_valgrind_unit

00:03:58

 
  Valgrind Functional
manual #21248
allowed to fail manual
algo_valgrind_functional