Merge branch 'multi-task' of gricad-gitlab.univ-grenoble-alpes.fr:verimag/synchrone/lustre-v6 into multi-task

lus2lic.sum allows checking which tests break / are corrected with
subsequent bug fixes

lustre-mt now includes lustre_consts file in para.h to declare inputs
and outputs of tasks

test file appli_para_pre now allows testing with both a multitask pragma
and pre operations

test file appli_para is now correct and can be launched

added tests with parallel nodes (not in top level) to test lustre and
lustre-mt with pragmas indicating tasks

tasks now support nodes with memory within the task and account for them
when checking if a task has memory

Merge branch 'multi-task' of gricad-gitlab.univ-grenoble-alpes.fr:verimag/synchrone/lustre-v6 into multi-task